Lacking all of the extra bulk included in normal role-playing games, Swordigo ($1.99) focuses on the main forte of said titles of similar breed: hacking and slashing through arsenals of respawning enemies. Though it doesn't boast an inextricable system of deciding from one of three classes, choosing from a seemingly endless plethora of weapons, armor and magic, level grinding or the most realistic 3D assets, arguably for better or for worse, Touch Foo's newest flawlessly combines platforming with RPG elements to bring you an overwhelming amount of enjoyable content.
Canabalt [App Store, $2.99] is one of those game concepts that was done 100% right. The objective is to run across rooftops, gaining enough speed to jump from building to building. Along the way there's tons of stuff to slow you down such as crates, birds, and even giant bombs that drop out of the sky to vaporize you. The truly epic soundtrack combined with the fast paced, simple gameplay makes Canabalt one heck of an addicting game. It's available for $2.99 in the App Store, but you can get a taste at canabalt.com.
Your time = gone. You're welcome.