It’s a two-hour nostalgia slot machine where the payout is a single “My Computer” window rendering at 3 frames per second. And for a certain kind of geek, that’s worth every second.

The PlayStation Portable (PSP) was a marvel of engineering in 2004. A decade later, the homebrew community unlocked its true potential, turning the handheld gaming device into an emulation powerhouse. Among the most outrageous and impressive hacks is the ability to run on the PSP.

Hold to enter numeric mode, then press Square twice to enter the boot menu. Press Square + Triangle to specifically boot Windows 95.

Is it useful? No. Is it fun? Absolutely. This is a proof-of-concept that shows the PSP’s incredible flexibility. Do not expect to run 1999-era apps smoothly. Do expect to smile when you see the “It is now safe to turn off your computer” screen on a handheld.