Yep this game supports as many controllers as you have - up to 8! So plug them all in, it'll work :) One bunny per controller! I wanted to make that clearer in the video but it was getting too complicated to communicate it, people might think you need 8 controllers for 8 players, and you don't!
You can easily mod this to swap out the levels, check out the "custom" folder! And can you get in touch with me about those extra levels? (Please use the contact form on my website, www.domariusgames.com) Ironically the original BrainChild site went down permanently last month, just before I collected all the custom levels from it! Very sad...
If there's enough interest, I have plans to add a level select, selectable animals and colours - and good point about the kid friendly version! I will have to make that an option too...
It all comes down to how many donations I get!