Highly addictive but you do need to pay

There is no doubt that this game is very engaging and addictive. But you can bet that you will need to pay money in order to advance in the later chapters. Theres no way around it unless you have nothing but time to spend getting almost perfect scores on each assignment/mission.
Update: Now I cant get into the game because it keeps crashing on my iPad. Garbage!

Heypeter about GUNFINGER, v1.4.3