Neutronic Rings

OBJECTIVE:
You are the green snake. You need to avoid the red rings that are hurtling towards you.
When hit, you lose 1 health along with 50 points. If you shoot one, you gain 25 points
and each ring has a chance of dropping the following:

Ammo - 20% chance
Power Up - 14.2% chance
Health - 10% chance

The number of red rings and their speed continues to increase by 0.1% each level. This
may not sound like much, but it adds up quickly!

CONTROLS:
Move = Mouse
Shoot = Left/Right click OR spacebar
Neutrino Pulse = f

ITEMS:
Blue plus = +10 ammo
Green plus = +1 Health
Yellow plus = +10% Neutrino Pulse power
White Question Mark = Power up

ENEMIES:
Red Ring - Drops items and powerups
Shielded ring - Immune to the Neutrino pulse, and will disable your gun on impact.

POWER UPS:
Ammo Spree = Infinite rapid-fire ammo until the words fade
Invincibility = No health is lost while this power up is active.