SPOILERS:
I think the best ending (but not the highest scored ending) is where you do all the steps up to blowing up the research laboratory, but before you blow it up you get the code digit from the dead researcher. Then you discover the truth and get the crystal from space and blow up the lab. After that, instead of leaving on the escape pod, wait for life support systems to fail and die on the ship.
The rescue party figures out what's going on and is able to contain the remaining crystals. Way better than the 100% ending, where you die and nobody knows what the hell happened.
If you go to level 12 in the human campaign and jump on the launch pad kinda in the middle of the stage at the top that launches you left, but strafe really heavily to the right, you hit a secret ? block from Super Mario Bros that makes your character grow larger and you get an achievement.
As an avid player of the full version, I beat this with 120 seconds on the third attempt. Would play more if there was a kongregate leaderboard. Still fun, though.
I can't seem to get the Shame badge... If you don't do it early game, it becomes impossible. Also, in the Agility minigame, if the game gets going too fast then 2 or more anvils resting on the ground become impossible to pass.
@danteal
That happened in: SPOILER ALERT : 2012. The game can presumably take place when it is released, which I can assume is DEC 28, 2010 7:17PM judging by the games news. Once the game is beaten, you continue to play in 2010, when the world hasn't ended.
"And don't overdose," they said. "It can get crazy when you overdose." So the first thing I do is overdose. The second thing I do is have a brain seizure.
 "Don't Escape 3"){kind=icon}
 "Raze 3"){kind=icon}
 "Hexagon"){kind=icon}
 "Mutilate-a-Doll 2"){kind=icon}
 "Zombie Minesweeper"){kind=icon}
 "Sky-splorer"){kind=icon}
 "Animal RaceWay"){kind=icon}
 "Give Up"){kind=icon}
 "Island Escape demo"){kind=icon}
 "I Am An Insane Rogue AI"){kind=icon}
 "Epic Friends"){kind=icon}
 "This is the Only Level 3"){kind=icon}
 "K.O.L.M."){kind=icon}
 "Death Dice Overdose"){kind=icon}
 "Interactive Bob 2"){kind=icon}
 "Thing-Thing Arena 3"){kind=icon}
 "Shopping Cart Hero 2"){kind=icon}