Generally you wanna score as many points as possible while avoiding danger. You're limited to fire only one bullet at a time and until it hit something you can't fire again, so basically the closer to enemy or obstacle the quicker you can shoot again.

This is your ship






You can't pass above the water line













Enemies and mushrooms are destructible and give you points

















When enemies are about to appear on screen you gonna see highlighted area

Each enemy in game you take down is worth different amount of points.

CENTIPEDE

Moves from top to bottom in zig-zag pattern and change direction on obstacle. Leaves mushroom upon destruction.
(per body part)

RUSHING CENTIPEDE

Rush from top to bottom which after reaching moves in zig-zag pattern. Leaves mushroom upon destruction.
(per body part)

SPIDER

Randomly walks in bottom zone where player moves. Leaves random power-up upon destruction.

FLEA

Rush from top to bottom leaving mushrooms in equal intervals. Leaves mushroom upon destruction.

SCORPION

Rush from one side to another horizontally. Worth taking down as it gives the biggest amount of points but spawns rarely.

Except enemies you can score points by shooting down some obstacles...

MUSHROOM

Pink and fancy, edible

POISON MUSHROOM

Green and deadly, not edible

ROCK

Indestructible

Game have many different power ups which give you different type of weapons for a short amount of time. Power ups are obtained by shooting down spiders and appears at random except challenge mode where probability of specific weapon is predetermined.

SPREAD SHOT

Triple shot



SIDE ATTACKS

Additionaly shoot to sides



BURST

5-way shot



RAPID FIRE

Quick fire rate



BULLET TRAIL

Quick fire rate with explosive bullets



LASER

Unleash powerful weapon that goes through the obstacles



ROCKET

Exploding bullets on impact



ORBITING BULLETS

Orbit around the ship and absorb 1 hit for each piece



SLOW DOWN ENEMIES

Bullet time, slows time too!



GHOST

Scare away enemies from the screen



MIRROR

Additionally shoot from above



BOMB

Spawns cluster of explosive bombs



BOMBS

Spawns line of explosive bombs