Testado html5

aaa https://html-classic.itch.zone/html/10948265/CupidsKiss-1.1-web/index.html

Snes9x Next

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Resize canvas Lock/hide mouse pointer    
Enable V-sync (can only be done before loading game)
Audio latency (ms) (increase if you hear pops at fullspeed, can only be done before loading game)

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Controls:

A button (OK in menu): X
B button (Back in menu): Z
X Button: S
Y Button: A
L Button: Q
R Button: W
D-pad: Arrow Keys
Start Button: Enter
Select Button: Shift
Toggle Menu: F1
Fast forward: Spacebar (toggle)
Slow motion: E (hold)
Save state: F2
Load state: F4