I've put slightly over six hours into this game. When I first heard about it, I was ecstatic: an Indie platormer meets Scott Pilgrim and Borderlands! I'm sold. But the game quickly got repetitive and boring. Here's some feedback. I haven't played in a while, so if it has already been addressed or will be addressed, ignore it.

1. Six hours in and the game should be handling with more fluidity and have much more challenging enemies. I kept plodding through the hours hoping it would get better. It marginally did. Which is unacceptable for such a large time committment.
2. I hate jumping in the game, there's always a slight delay regardless of weight - both in the take off and land. Some platformers 20 years ago didn't have this, why does this game?
3. Timer: I like the timer, it keeps me focused on the mission, but I realize many people prefer to take their time and relax - how about a time attack mode for those of us that want to race against the clock or a non-timer mode?
4. Progression - in terms of unlockables - is too slow and unsatisfactory. I have to clear a whole set of missions for more weapons to unlock, which means I just have to go through the grind of missions. Missions that, despite different tasks, seem all too similar. This gives me little incentive to return.
5. Can't shoot diagonally? Advertent design choice?
6. Picking up things is kind of awkward an clumsy.
7. Controller mapping? (Did I miss this?) I us an Xbox 360 controller. Fairly standard for PC games.