While not a great pinball game, Sonic Pinball is a unique title and definitely worth checking out for casual fans of the Sonic franchise.
For nostalgic purposes, feel free to add Altered Beast to your phone, but don't expect this game of bizarre Grecian mythology to have aged well.
Battlefield Bad Company 2 is one of the best first person shooter games out there, giving other first person shooters on the iPhone a run for their money.
Splatterhouse's 20-year-old gameplay is repetitive and slow, though for some this will be part of the nostalgic fun. If you were a fan of the original, it's worth shelling out the $3, for everyone else, I'd recommend getting your zombie-bashing in elsewhere.
Overall, EA's $5 game is a wonderful improvement on NBA Live 10 and is an App Store-novelty as the only basketball game to offer full-court 5-on-5 action. Graphically, the game looks incredible, especially if you're playing on an iPhone 4, and may be the best-looking basketball on the iPhone. From actual gameplay to the instant replays to the detailed floors—everything on NBA Elite 11 speaks of polish.
EA Mobile's new $5 game is definitely a good pick-up for those familiar with The Sims canon: it's addictive as any prior iteration. While it is by no means the pioneering, total re-conception of the game some hard-core fans may hope for, it does offer enough quality editions to make it worth adding to your bullpen.
If you enjoy disturbing ancient burial sites, mummy attacks by torchlight, and just the right amount of references to classic adventure films, then Shadow Edge is the game for you.