One thing that would be very considerate is if the game kept track of how many slices it took to get 100%, so if you managed it in 1 or 2 it could just auto-fill that for 2-slice or 1-slice mode instead of making the player fuss through that again.
The main issue I have is that Kick is a nice fun mechanic for one-at-a-time battles like in the main campaigns, but it's a death sentence in Act IV survival unless you picked the considerably less useful of the two warriors, because someone's going to use it on half your melee line within about 5 fights.
Fun game, but you might want to add an option to turn off the dimming filter, as that seemed to be the source of most of the lag. Ran just fine once I got all the energy in each level and you turned it off altogether.
Oh, and if you re-sort the achievement list (say to prioritize closest), getting one of them will scroll the list to its original absolute position instead of its re-sorted one.
I really wish you'd put some graphics optimization into this. The tremendous amount of lag -- especially in the hamster room -- delays input and makes some of the achievements essentially impossible. Also, the hamster combo likes to reset even when you land on them, probably because you pass through it and it checks the ground collision before the hamster one.
So it's not enough that we have to grind to be able to just unlock tracks. We also have to grind extra to re-upgrade the cars we have to drive in them so they aren't outright inferior to the previous ones. UGH.
Oh my god, you actually managed to make a more half-assed MMO than Dream World. Props to your art team, but for the love of all that's good fire everyone else. Nobody is going to pay real money for a game you play for 30 seconds.
Yeah the boss is kinda cheap in that there's not really a boss fight so much as a check to see if you have enough time upgrades to dick around with an incredibly simple and tedious 20-second attack pattern four times.
Half the quests don't actually trigger. I've still got stupid crap like "fortify stuff" and "wear equipment" in my log despite having long since done all that.
The rating system at the higher ranks is really, really skewed. It's pretty retarded to get a 5.0 or less ranking for nailing every pass and getting a goal at the only opportunity given but whoops! it was a team-friendly assist instead of a risky glory hog 50-yard bombardment through six dudes. Getting penalized for playing intelligently is silly. Oh, and unnecessary ridiculous increases on energy drinks -- it'd be grindy as hell even without that.