A small arcade-shaped room. Yours to break.
Play: Arrow keys to move. Hold space to shoot. R to restart after you die. The little orange dot on the ship is your real hitbox — the wings are for looks.
Hack, devtools: press F12 (on Mac, ⌥⌘J) and type —
player.speed = 20 · spawn('doubleRing') · wipe() · god() · help()
Hack, source: the whole game is one HTML file. Grab it, open it in any text editor (TextEdit, VS Code, Notepad, whatever), change numbers, save, double-click to open your edited copy in the browser. The patterns are the first thing inside the <script> tag — each has comments inviting you to change things.
Nothing here is precious. If you break it, close the tab. Come back.