Your progress — tournament levels, unlocks, loadouts, settings and anything the game stores — is saved on this device, in this browser, using the browser's built-in IndexedDB storage. There is no account and no server: nothing is uploaded, and every player on every device has their own separate save.
The game's music and sound effects are synthesised live by the game itself, the same as on the desktop, and played through your browser.
Music and effect levels, the jukebox and its EQ are in the game: Settings (AUDIO, MUSIC VOLUME, SFX VOLUME) and Jukebox on the main menu. Browsers only allow sound after you click, tap or press a key on the page.
A/D or ←→ aim · W/S or ↑↓ power · Shift bigger steps · Space fire · X special attack · Enter select · Esc pause / back · H switch home screen.
When a match has SPECIAL turned on in its rules, press X (or the X SPECIAL button) on your turn to give up that turn and bank a charge. With two charges banked, your next shot is one huge 3-damage blast. The button only appears in a match that allows it, and only works on your own turn.
Phones and tablets get an on-screen pad (toggle it with Touch pad). SHIFT makes arrows take big steps, X charges the special attack, and KEY opens the keyboard for typing. Landscape gives the biggest battlefield.
Plug in or pair a controller and press a button: D-pad / stick aim, A fire / select, B back, X enter, RT special attack, LB hold for big steps.