Bad level design in level 17, the eraser graphic should not be there since it's hollow. Also if you fall to the bottom after collecting the blue key, you're basically softlocked and have to reset.
You can skip lots of levels in a row by rapidly pausing and unpausing just as you exit a level, it is possible to beat the entire game in 10 seconds using this glitch/exploit.
Level 5 is a bad case of misleading instructions/tips, thought it was impossible, but once you realise boom command can also blast through walls, it becomes trivial.
The timer really should say BONUS instead of "time left". It is actually NOT necessary to complete each level before the timer runs out. Take your time and try to either trap or push bouncers away from the corners. Ended up dying on level 18 due to too many hasty decisions from the "time limit".
For $25000 arcade: You can grind for the OMEGA CATALOG from bonus shop and try: [Max ramp length, Omega Superslide, High tech glider, Pulse jet and $500 fuel]. Just the take-off would result in almost 13k points(!!) with the insanely fast speed. Hard badge becomes easy.
"Oh so you think your tower is stable? I'm sorry, but this one ball is moving ever so slightly to the edge, so we must force you to wait a whole 5 minutes for it to roll off. Please RELAX! and try again, thank you for playing." :)
The evil lies in the fact that theres no mistake detection system and no mistakes allowed, so if you do make a mistake, you only realise at the very end, and have to backtrack/start over, happened to me way too many times :")
Controls/Game is so glitchy, somehow got trapped INSIDE walls both times I played, couldn't kill myself and I had to restart the entire game. Also, it should not take me 30+ space bar taps to kill one enemy, when they take just 1 hit to kill me. All these make the pixel pack quest even more of a grind