У вашего броузера проблема в совместимости с HTML5
I'm making a fork of doomhack's amazing PrBoom port for the GameBoy Advance called GBADoom SVN, where instead the HUD is like the one from the official Doom 2 GBA port by Torus.
You can get it here:
https://github.com/Kippykip/GBADoom
or the OG one by doomhack:
https://github.com/doomhack/GBADoom
Shoutout to my ePPPIC Patreons! - (chimecho, arceus, EPIC#3431)!!!!
PAtreoN: https://www.patreon.com/Kippykip
dISCORD: https://discord.gg/ZAWNaKx
tWITTer: https://twitter.com/kippykip1