Note that the battle and arcade versions differ in controls. In Arcade, the enemy closest to you is automatically locked onto, whereas in Battle, you must explicitly tap on the opponent to shoot it.

## Enemies

_The following scores pertain to the Arcade version._

**Light Grey** - First tier opponent; does not fire projectiles; requires 3 arrow strikes with no upgrades. Yields 1 coin, and a score of 5.

**Red-Orange** - Third tier opponent; fire projectiles in every direction when you come too close to it (which yields no score). Yields 13 coins and a score of 65.

**Dark grey** - Fourth tier opponent; fires 5 projectiles (one down the middle, two the the left, two to the right); fast moving; high hitpoint.

## Shop System

Upgrading different items will change will change the type of enemy spawned. With maximal upgrades, one does not encounter the Light Grey, Blue or Orange enemies. The shop consists of the following:

**Health** - Upgrading this will give you more lives. You begin with 1, and you end up with 5 once you maximise upgrades. Cost starts at 10 coins and doubles until the final upgrade which costs 80 coins.