Atomic Cannon Pocket 3.0
the author of this app says:
The ultimate artillery duel with 100 weapons of mass destruction! Prepare for an action packed battle leading tanks to global domination. Atomic Cannon features 100 powerful weapons and 25 deformable scenic landscapes to wage war on. Additional features include death match and round based game modes, multiplayer mode with up to 16 players, real time smoke trails, weather effects, real physics, and five music tracks.