I generally don't like these kinds of games because they are so mindless and repetitive. This one is just so well done it's kind irresistible. Upgrades, music, nice graphics, and an interesting concept (kidnapped bison masked wrestler?). I just lost an hour to this silliness. Kudos to the makers.
Looks great, upgrades are cool, interface is smooth... but the fun gets lost when it comes down to driving around in a circle endlessly with the fire button pressed down. Reload? For what? Shields? Who needs 'em? Just fly in circles and hold down the fire button and you can't lose. Gameplay needs some nuance to make it great.
The copyright propaganda is a little bit weird and annoying, but the game experience is spot on. Great detail, good music, nice puzzles. Add a level editor and you have a classic!
 "Sieger: Level Pack"){kind=icon}
 "Burrito Bison"){kind=icon}
 "Mech Defender"){kind=icon}
 "Wallace & Gromit: Sprocket Rocket"){kind=icon}
 "I wanna be rich"){kind=icon}
 "Car TD 2"){kind=icon}
 "Dino Evolution"){kind=icon}
 "Take Something Literally"){kind=icon}
 "Little Wheel"){kind=icon}
 "Battalion: Nemesis"){kind=icon}