It was very, very easy.
To those who are saying it's too hard, learn2play. To those who are saying it's not as good as 3 or 4, of course it's not...this came out BEFORE 3 and 4, 3 and 4 are the improved versions.
As much as I hate to be negative about a well-coded game, it’s just far too long and without enough variation. I don’t really fancy spending 4 days completing all three levels (including elite) required for the impossible badge, but I probably will anyway, cursing myself the whole time.
Make it a bit more entertaining, a bit more humorous, and a bit less long-winded, and it’ll be a top quality game. The explosion effects in particular are really well-created.
A complicated game to say the least. I have to say though; The controls were terrible and the enemies are too strong. It glitches all over the place but the timer works well.