VORTEX

A tribute to the 1981 vector arcade classic

Players 1 player 2 players (take turns)

Starting level Difficulty Game speed Lives Bonus life every Keyboard spin speed

Controls, display & sound Auto-fire (always shooting, handy on phones) Mouse spinner (slide to spin, left-click fire, right-click superzap) Vector glow (turn off if the game is slow) Volume

How to play

You are the yellow claw on the rim of the tube. Spin around the rim with ← → (or A D) and fire down your lane with Space, ↑ or W. Holding fire keeps shooting.

Flippers (red) crawl up and grab you on the rim. Tankers (purple) split into two flippers. Spikers (green) leave spikes, so shoot them down before the warp to the next level. Fuseballs and pulsars come later.

The Superzapper (↓, S or Shift) destroys everything on screen once per level, and one random enemy the second time.

P pause · M mute · Esc this menu · Enter start from the title screen

On a phone or tablet, slide your thumb along the dashed strip to spin, and use the FIRE and ZAP buttons. The Settings button pauses the game. No sound on an iPhone? Check that the silent switch is off.

Players, lives, difficulty and starting level apply when a new game starts. Settings and high scores are saved in this browser only.