Help from above...

Upgrades:

• Better flamethrower animation.
• Options to show player damage info and enemy damage info.
• Supply Plane for every 15 rooms. Drop 25% health item.
• Now, options menu can be acessed in game.

Bug Fix:

• Debris of dead tanks now disappear in 10 seconds.

Thanks to the user 'Sweetly Sick', he helped me a lot by informing some problems.