@chumtin the minigames are given out by characters you'll meet along your travels, one in each area. just talk to everyone and you'll find the minigame givers eventually (make sure you read what they have to say too!)
I think I ran out of keys, I went right first from the beginning and cleared the entire area, had 1 key left over, afterwards went back to the beginning and opened the bottom gate with my 1 key and now I'm stuck at some big blue runic door, and I can't go anywhere. Am I missing something?
Its good but not quite good enough, IMO. The characters are all just sooo slow in movement, except the thief, but as soon as someone hits you you lose the character you have. I definitely dont like that, how i lose the character I want to play with because I couldnt see whats past the bottom edge of the screen and my character was too slow to avoid it.
I ran into a major glitch on The Obisidan Gap: on the last platform on the level, 2 platforms, 1 medium size and 1 small, have paths that intersect, so I was on the medium platform and crossed onto the smaller platform without jumping, however it didn't carry me properly I had to move to stay on it. All of a sudden my character flashed to about 10 feet above the lava and started shaking up and down very fast, moved myself left get on the land and then he went inside the ground, then I flashed up into one of those yellow sun things and died :(
Kinda stupid how the reload time is proportionate to the amount of bullets in the gun, its not like theres a thing called clips or something like that... But that pretty much makes the bazooka and shotgun the best weapons in the game, and the minigun one of the most useless.
Look up Picma here on Kongregate and you'll find out what a nanogram is (although what they are don't really have an official name, per se). As you can see you are the first to have done what you did, and I'm sorry to say you definitely didn't do it best.
Awesome game! Beat the boss on my first try, too bad he was the only one (i think?). Anyways the level after (level 4? 5?) I lasted until I hit about 200k pts, then yellow enemies and flashing enemies just swarmed the freakin place along with about 15 UFOs, all at once, and I died :( Very fun!
 "Epic Battle Fantasy 3"){kind=icon}
 "GunBot"){kind=icon}
 "The Deeplight Expedition"){kind=icon}
 "Vertical Drop Heroes"){kind=icon}
 "Monster Mowdown"){kind=icon}
 "SpotZim"){kind=icon}
 "Clash of the Olympians"){kind=icon}
 "Ball Revamped Duo 2 :: Thirty"){kind=icon}
 "Block Knocker"){kind=icon}
 "Abductroids"){kind=icon}
 "A.R.M.S"){kind=icon}
 "Dig: The Lost Miner: Episode 1: Preview"){kind=icon}