The game features five levels at increasing beats per minute (bpm), each with an easy, medium, and hard difficulty setting. The audio is comprised of original beats created and recorded by Kramer himself. Completing a level on any difficulty nets you an audio message from Joey reflecting on your performance, and after completing all the levels players can submit their scores to the High Score Contest leaderboard for a chance to win monthly prizes.
There's also a freestyle mode (pictured above right) where you can bang the virtual skins to your heart's content, similar to a handful of one-off instrument apps like Drum Meister. Overall Hit Hard is an easy-to-use rhythm game meets lightweight freestyle finger drum app for a reasonable $1.99, which nets Aerosmith and Joey Kramer fans a chance to compete for bragging rights and enter the monthly special prize contest.
What's your favorite music app for the iPhone?