Hightly rated iOS free for a limited time. Toucharcade rated this 4.5 out of 5 stars, and it has 4.5 stars from App store reviews.
"DeathSmiles is a thrilling ride from beginning to end. Its crazy japanese visual style combined with a mash up of rock and techno music (including a cameo from tubular bells) is a joy to behold. Combine that with intense shooter action, item upgrades, a bizarre storyline, and multiple endings, and you have one of the best shooters on the AppStore, joining it’s brothers and sisters from CAVE as the best of the best. "