Target Blast is all about tapping targets to collect points and gain new abilities. Different themed level sets will be released frequently.
(You can review the game to vote for future themed level sets.)
This game may increase reflexes and reaction time, catching Rainbow Boosts are the most difficult but the Red Boosts will do you just as good.
Sliding your finger around the screen may be easier for most players to destroy the balls/catch targets. Tapping is fine too.