@valentine6887 : There are two powerup's which are already built in :)
1) Blaster : As you eat the green orb the bottom hud will indicate that the power up is ready to use.Jsut Hit 'S' key to destruct Single blocks.
2) Mega Blaster : Eat the red orb's and once filled enough hit the 'SPACE' key to destruct the entire row of blocks.
Hope you skipped the initial tutor 'How to Stay' :) It explains every key feature.
Thanks for the other valuable comments will try to implement in upcoming version.
 "Fast & Furious"){kind=icon}
 "STAY"){kind=icon}