Megaphone Main article: Map editor

This is a list of techniques which can add charm or unique aspects to user-created levels. Please keep this list organized per category.

Visual Techniques Edit

Cookie platforms Edit

Trams and Cookies

Cookie platform

Cookie platforms are extremely simple and appealing. They are made by creating normal ground, then a smaller section of chocolate ground on top of it. There are also variations of it such like Jam platforms.

Decorations Edit



Done creating your level? Good! However, you might have space left on your level. If there are any spaces you could fill up without them interrupting the level, do it! This might sound obvious, but is often forgotten. For example, 'I' put a cookie platform (though, ice was used instead of chocolate for the effect) on the side to make the level a bit cooler looking.

Surprise platforms Edit

A simple way of creating surprise platforms is to simply create a normal platform, then edit the platform's restitution (with the selector tool) to be fairly high. (20 will make it act exactly like a lava platform, but if you set it ridiculously high to around 500 or so even holding up won't save any mouse that lands on it.) You can make any platform act like any other platform with this method!

A variation which is harder to make, and looks worse is to make two grounds of the same size. For example, we want to make a normal ground with a surprise Lava ground inside it. To do that, first make a Lava Ground, and then make a Normal Ground with a size comparable to the Lava one. Then, move the Normal Ground on top of the Lava Ground, and voila! Here you have a Surprise platform! Rather than being a safe standing ground, it will launch your mind away.

Invisible Platforms Edit

First VersionEdit

First, make a platform very tall (at least over 9000). There is normally a very small invisible margin between you and the platform, but when the platform is very high, the margin grows, as much as you like. Simply move the visible platform out of view and presto, an invisible platform.

Second VersionEdit

First, you make a ground rotated 90 degrees acting as a platform or wall. Then make the rotation a number you will remember, copy the map XML (on Save / Load / Test) and export it to a Word document. On the Word document, find the platform you made and make the rotation for the ground 89999910. Copy and paste that back into map editor. Now you will notice a weirdly rotated platform which is at 10 rotation. That is the "image" of the platform, but the real platform would be in a straight up or in a sideway position.

Notes: If you want to change the rotation of the part of the platform you can touch, go back to Word and make the last two numbers into another number. You cannot make the rotation negative either to reverse the part of the platform you can see. Do not try to change the 899999. Part of the glitch will not work. Sadly you cannot change the rotation of the platform that you can see.

Dangerous cheese Edit

Dangerous cheese

Bounce height

Four cheese, only one way, and you won't see what's correct. First you need to make five or more vericital ice grounds to disallow wall jumping. After that, create four ice planks below as in photo. Set Restitution to 20 and Friction to 0 for random three planks. For last plank, set Restitution to 1 and Friction to 0. Falling into planks with high restitution will cause kicking mice off the map. This with restitution equaling one would keep working as trampoline. At the end, create big ice ground at the bottom to mask ugly effect. And viola! You have map with four pits (but only one valid).

Dangerous cheese2

Second step

Practical Techniques Edit

Invalid friction Edit

Megaphone Main article: Invalid friction

Invalid friction maps are maps in which dynamic ground is given an invalid value (such as "-12000" or "doughnuts") rather than a legitimate number for its friction value. This can cause a number of glitches within the map which can be refined into actual map gimmicks such as teleportation or phasing through ground types.

Disable Red Anchors Edit

Step 1: Make a small (10x10) Invalid Friction ground (described above).
Step 2: Make the board dynamic.
Step 3: Set its linear damping to 9999.
Step 4: Give it fixed rotation (Put a 1 in the "Fixed Rotation" spot).
Step 5: Place it in a location where it could not be quickly and easily reached (0,0 is popular).
Step 6: Attach a red anchor in its center.
Step 7: Create another ground above it that is dynamic.
Step 8: Adjust distance and linear damping of it so they touch on desired moment. When the planks touch, red anchors will be disabled. Placing next to at the beginning of the level will disable the anchors immediately.

Note: Making the distance too small, or having them touching on the editor without moving into place, may result in connection before the red anchor is spawned and nothing will happen.

A simple example map is:

<C><P /><Z><S><S P="0,0,0.3,0.2,0,0,0,0" L="593" H="10" X="447" Y="263" T="0" /><S P="1,0,INVALIDFRICTION,0.2,0,1,9999,0" L="10" H="10" X="0" Y="0" T="0" /><S P="1,0,0.3,0.2,0,0,1,0" L="10" H="10" X="0" Y="-12" T="0" /></S><D><T X="179" Y="254" /><F X="449" Y="250" /><DS X="724" Y="240" /><DC X="694" Y="240" /></D><O><O X="0" C="11" Y="0" P="0" /></O></Z></C>

Swimming In Ground Edit

Just make a ground, set it to dynamic ground and set it to 1 mass, if you want it to stay afloat make 2 red joints so it will not move about. If you add two legs to a 99x99 swimming ground, then if you push it, it will appear to be walking!

Non-moving dynamic grounds Edit

Set the ground to dynamic and then set the Mass to 9999, Linear Damping and Angular Damping to 40. If you want to be able to anchor props on a static ground, make it dynamic and set the Mass to an invalid value, for instance -1.

"Flying Board" Edit

Step 1: Create normal type ground of any size.
Step 2: Make sure it's flat and on a surface of any type.
Step 3: Make the board dynamic.
Step 4: Give the board a mass of 999999 (The maximum).
Step 5: Set the friction and restitution to 0.
Step 6: Give it fixed rotation (Put a 1 in the "Fixed Rotation" spot)
Step 7: Make the Linear Damping 9999 (the maximum).
Step 8: Make the Angular Damping 100.
Step 9: Attach two of anything (except balloons and runes) to the plank (You can do this while you're still editing, or while you're playing the map) Note : Cannons are somewhat unstable, and when you attach trampolines to it, it only rises when there is weight applied to it.
Step 10: If done correctly, the plank should rise. It rises at different paces, depending on what you attached to it.

Notes: You can change the restitution and friction to your desire. Trampolines sometimes don't work very well, or are glitchy. You can attach other pieces of ground to the board after step 7, such as to box it in so mice can't escape (this hasn't been tested very much, but it's worked before). You may have to attach more than two items when you want to attach the items after you edit the map.

Bubble generator Constant Edit

This is how to make a devise that spits out a constant stream of bubbles.

Step 1: Make two cloud grounds about 50 pixels (How distance is measured in the game) apart.
Step 2: Make the bottom one have a restitution of 20 or the max, and give the top board a restitution of 0.
Step 3: Make both grounds have a friction or the maximum value.
Step 4: Put a water block that is about 20 pixels in height and the same length of the cloud grounds right below the top cloud ground.
Step 5: Place a Rune Facing down, but don't put it in the water.

Notes: To see how to cover up a Bubble generator look at infinite rotation. Also called a bubble machine.

Bubble generator pulseEdit

This bubble generator will make a steady pulse of bubbles ever 2 or 3 seconds.

Step 1: Make a two cloud grounds and have one of them a same 10 by 10 block that is dynamic.
Step 2: Make the restitution negative or make them dots "..."
Step 3: Place a block of water that's about the same length to the lower cloud ground, but have the top of it a few pixels bellow the top of the cloud ground.
Step 4: Place the small cloud block above the cloud and water grounds.

Notes: To see how to cover up a Bubble generator look at infinite rotation. Also called a bubble machine.