I wanted to give the game a try, but it's fully black when I fullscreen. Out of fullscreen, the window is too small. Firefox. Not sure if it helps, but here's the log:
WARNING: Could not create render target, status: 36054 index.js:467:18 onPrintError https://html-classic.itch.zone/html/18709281/index.js:467 put_char https://html-classic.itch.zone/html/18709281/index.js:1 write https://html-classic.itch.zone/html/18709281/index.js:1 write https://html-classic.itch.zone/html/18709281/index.js:1 doWritev https://html-classic.itch.zone/html/18709281/index.js:1 _fd_write https://html-classic.itch.zone/html/18709281/index.js:1 <anonymous> source19:32819445 <anonymous> source19:32851662 <anonymous> source19:32854920 <anonymous> source19:28712656 <anonymous> source19:28712286 <anonymous> source19:28712031 <anonymous> source19:28713004 <anonymous> source19:31388444 <anonymous> source19:31388789 <anonymous> source19:12007214 <anonymous> source19:12014524 <anonymous> source19:24123569 <anonymous> source19:25056683 <anonymous> source19:16129772 <anonymous> source19:16243776 <anonymous> source19:16253707 <anonymous> source19:16307541 <anonymous> source19:29179671 <anonymous> source19:381687 <anonymous> source19:584098 callUserCallback https://html-classic.itch.zone/html/18709281/index.js:1 runIter https://html-classic.itch.zone/html/18709281/index.js:1 MainLoop_runner https://html-classic.itch.zone/html/18709281/index.js:1 at: _update_render_target_color (drivers/gles3/storage/texture_storage.cpp:2678) index.js:467:18 onPrintError https://html-classic.itch.zone/html/18709281/index.js:467 put_char https://html-classic.itch.zone/html/18709281/index.js:1 write https://html-classic.itch.zone/html/18709281/index.js:1 write https://html-classic.itch.zone/html/18709281/index.js:1 doWritev https://html-classic.itch.zone/html/18709281/index.js:1 _fd_write https://html-classic.itch.zone/html/18709281/index.js:1 <anonymous> source19:32819445 <anonymous> source19:32851662 <anonymous> source19:32854920 <anonymous> source19:28712656 <anonymous> source19:28712286 <anonymous> source19:28712068 <anonymous> source19:28713004 <anonymous> source19:31388444 <anonymous> source19:31388789 <anonymous> source19:12007214 <anonymous> source19:12014524 <anonymous> source19:24123569 <anonymous> source19:25056683 <anonymous> source19:16129772 <anonymous> source19:16243776 <anonymous> source19:16253707 <anonymous> source19:16307541 <anonymous> source19:29179671 <anonymous> source19:381687 <anonymous> source19:584098 callUserCallback https://html-classic.itch.zone/html/18709281/index.js:1 runIter https://html-classic.itch.zone/html/18709281/index.js:1 MainLoop_runner https://html-classic.itch.zone/html/18709281/index.js:1</anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous></anonymous>