Pretty sure this is unintended... There's an easy way to break the game. To set it up, you need to be able to power 2 multipliers and a splitter every "beat". Then you simply create an infinite feedback loop with a 2x2 area. Have one of the multipliers feed into the other and the other feed into the splitter. Route one end of the splitter back into the first multiplier. At first, you should route the other end of the splitter into the second multiplier. Once this is stably looping into the max the multiplier can produce (which will happen quickly), you can route it to whatever you want. You can siphon it to start a clone of itself or into an increaser loop to power the next tier of multiplier.
Game softlocked for me, probably because I had too many enemies onscreen and was cornered by them. Good game, but this is a big issue that needs fixing.
One thing I would LOVE to see, is a quick and simple way to fully upgrade a tower. It is incredibly time consuming to click a tower, move the mouse, click, move again, click again, then select a new tower. This is really bad when you have lots of single space towers. Something like clicking while holding down the u button or maybe control to keep it near the shift click mechanic would be very nice. If you didn't have enough money to fully upgrade it could flash a "Not enough money for this." message or something. As Acemarch said, it'd be nice if the stars actually did something. Other than these minor quips, great game.
Normally dislike game music... This game gets 5/5 just for the music. That said, it's an all around well-done platformer. One thing the devs should look into is at least repositioning the game (hopefully scaling it also) if the player zooms in by zooming in on the browser.
Amazing game, wish it wasn't put on hold, I would definitely get it. It satisfies the hunger for 3D puzzle/platformers that are fun and challenging which I haven't had satisfied since the heydays of the N64.
There is no winter cup for me, I've gone through the year a few times now. There ARE, however, 2 Autumn cups, which would be fine if the second awarded me the winter cup, but it doesn't.
Never played Ikaruga (the obvious imspiration for this game), but I'm sure this game about as fun as it. Is there anywhere we can download the songs used in the game?
For easy hard badge, gather up all 4 tombstones before you turn him into the skull. Once you get all 4 together, just ignore him for the most part, just dodging the attacks if you need to (make sure to avoid the laser). Just grind on 4 tombstones to the pink CC then proceed to kill him super quickly. To make it even easier, kill him as the pink CC as he tries to fire his laser, once he becomes a skull, mash A. Congrats, you should have the hard badge.
 "Idle Power"){kind=icon}
 "Questopia"){kind=icon}
 "Swarm Defender"){kind=icon}
 "Knightmare Tower"){kind=icon}
 "Jelly Escape"){kind=icon}
 "Sarah's Run (preview)"){kind=icon}
 "Mardi Gras Mayhem"){kind=icon}
 "Monster Arena"){kind=icon}
 "Hack Slash Crawl"){kind=icon}
 "Negative Spacecraft"){kind=icon}
 "Castle Crashing \"The Beard\""){kind=icon}