Very nice job integrating different challenges into a platform game. My only minor objection is that it's a one path game - you can only go where you are supposed to go, and can't wander off and get lost. Good work.
Looks good, and it's a good start at something, but previous commenters have some valid points. Having to hit the guys six times with that slow gun is a real chore - maybe use the coins to buy a decent gun, upgrades, etc.
I am working on a user interface of the game, at the moment in-game menu is opened by pressing the "esc", arrow keys for navigation and "space" to activate
Thanks