A downloadable add-on world for Dr. Lunatic Supreme With Cheese by ElMikkino.
Key of Lunacy is awarded after beating Otherworld.
Supremestep![]

You just need to head over to opening and mash the bunnies until you can get all the Brains to finish the level.
For the Candles, i suggest getting them in a seperate playthrough.
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A very difficult to cross level with a You-Go driving section with "water" tiles all around. I had to cheat through it.
Hacksite (Rocket Keychain)[]
Just a mash all the bugs level. Take note of the Rocket Keychain at the top right corner of the level.
MMORPG Dungeon (Squash Keychain)[]

A dungeon like level, just note where the Squash Keychain and Candles are in the level.
WebQuiz[]
1.Internet Explorer
2.World Wide Web
3. .ca
4. 7
5.ElMikkino
Please remember to go to the bottom right corner for the prize for completing this quiz and to complete that hidden level WebQuiz Prize
WebQuiz Prize (Secret Level) (Hammer Keychain)[]
Just collect everything including the Hammer Keychain and leave.
Typing World[]
Push the letters to the address bar to assemble the word: Otherworld.
You will then go the level Otherworld.
Otherworld(Hub Level from Typing World)[]
From here, you can go to the levels or back to the main hub.
To beat this level, you need to be able to go to the top right corner.
1.E-mail Loony Doom!
2.The Monster - The Internet
E-Mail Loony Doom! (Pumpkin Keychain)[]
Note the Pumpkin Keychain is hidden behind the Ultrazoids wall.
Other than that, just mash those badguys.
The Monster - The Internet[]
Honestly, a very difficult boss fight to do legitimately, due to limited firepower in the level. Otherwise mash the boss and leave.
Special Features[]
Just read the texts and leave.