This Walkthrough of RapiTap! highlights playing the game using Talkback and goes through some of the options which can be changed to suit your individual needs and taste. For those not familiar, RapiTap! is an adrenaline pumping, challenging, accessible real time reaction based game where the goal is to tap the targets as quickly as possible (avoiding the decoys) in order to get a high score.
Here is the link to the Inclusive Android page for RapiTap!: http://inclusiveandroid.com/?q=content/rapitap-accessible-game
There is both a paid, and a free lite version of the game available from Google Play (follow the link above for the full description and links to Google Play).