like the others, I agree that this is challenging and difficult at the same time
Level 30 is a toughy, and there are some on Elite that are pretty hard, but some of them are just remembering what you did before. I agree with DOOMbubble, shoulda had a cooler ending to it, but it was fun regardless. And I used my finger to remember where I had to throw the grenades haha.
after you beat elite, and you spam grenades everywhere...it just gets rediculous, does if effect your score though if you go back and do every level over again?