Better auto-fire speed
Hold A for five seconds while at the fastest shot speed to shoot even faster.
To unlock the following Upa-Upa, Gold Rush modes etc. complete the following tasks:
Unlockable: --- How to Unlock:
Extended Weapon Time Option --- Get three million coins
Gold Rush Mode --- Get two million coins
Unlimited Weapon Time Option --- Get one million coins
Upa-Upa mode --- Complete the final stage