"Trucks & Skulls NITRO is now FREE! Download the AppAllStar app to get a new quality free game every day!" Winner 2010 Best App Ever Award -- Best iPhone Action Game! This is the physics puzzler you've been waiting for! Smash NITRO-BURNING MONSTER TRUCKS into piles of GIANT SKULLS! Demolish skull fortifications on Hell's Highway, The Haunted Wastelands, Industrial Armageddon, Demon Town, Iceopolis, and the airless wastes of the Moon! Rev up your engines to launch your trucks, then tap to make.