A downloadable NES ROM

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Note: You can talk to the pair of eyes.

This is a short NES prototype of an ancient version of DERE EVIL EXE.

While not as big as AppSir's modern titles, the unfinished PROTO DERE .NES was an important artifact that was sought after for decades. With the recent success of DERE EVIL .EXE and the upcoming release of DERE VENGEANCE, we decided to upload the prototype NES ROM for AppSir fans to enjoy.

The creation of the PROTO DERE .NES prototype game led to AppSir's modern day hits DERE .EXE and DERE EVIL .EXE. For 33 years, the cartridge could not be found.

Recently, an FB user was able to track down the original cart for the unfinished NES game ‘PROTO DERE .NES’ and dump the ROM online. He posted this in the Obscure NES Games Group:

“Guys, I think I found something! Apparently, it’s a lost NES port of the old PROTO DERE arcade game which was showcased in 2017 for the AppSir launch party. I couldn’t find information about the game in any of the listings. It’s either an obsure bootleg, or a pre-production cart that never made it to release. Despite the internal damage on the game’s circuit board, I was able to rip the ROM so you guys can have a look at it. It’s filled with glitches, but I’m certain I didn’t corrupt the ROM. That’s how it played when I got it working on my dusty old NES, so maybe that’s why it was never released.”

Other users expressed their excitement for the game’s discovery with some inquiring about the possibility of buying the physical cartridge. Some users have even claimed to have played the unreleased NES game before and have started sharing their nostalgic experiences. However, the group has now been archived as some of its users have been found dead.

Fortunately, for fans of the series, it is now possible to play PROTO DERE .NES on your home computer by using an emulator such as FCEUX!

Please enjoy this short platformer game prototype!


The AppSir Games Universe is a series of standalone retro platformers, visual novels, and horror games with intertwined stories.


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Thanks for the game!
I'm really big fan of dere trilogy and finally got how to play this game (because I'm a noob at programing or pc)
But there's a problem


When at the end is black hall it's endless, I was going like for 10 minutes or more and nothing happens...?
I already saw an first ending on Youtube but now I played game for second ending and got nothing...
Is there some way to solve this glitch...?
Or watch somewhere second ending?

Thanks for you time!