Good but simple
Very entertaining and addicting, i found myself completely finishing this game with all medals.
Although it was fun, it was a bit too simple and easy for my taste. Like how you get new upgrades and such, this adds to the fun but at the same time it seems to steer you in the direction of how to complete a level. Almost as though you are only supposed to use your new upgrade and nothing else.
Overall fun, but how the upgrades are introduced and used could use tweaking.