Round yellow guy with a big mouth runs into a labyrinth eating small pills while dodging ghosts.
Eats big pills to eat ghosts.
Eat all small pills to get to next level.
Eat fruits and sweets to get extra points for easier extra life.

YES, this is the classic and only Pac Man that everybody knows.

Pac-Man - NES Improvement (formerly known as Pac-Man NES - GFX Restoration) is a hack that seeks to improve Namco's port of Pac-Man to the NES by providing a complete graphical facelift. Every graphic has been redrawn, recolored or both in order to resemble their arcade counterparts as closely as possible.

Check the included readme to see what's been changed in the v2.0 release.

Database match: Pac-Man (USA) (Namco)
Database: No-Intro: Nintendo Entertainment System (v. 20180803-121122)
File SHA-1: E7D818E128593109B5C480497A050FACC0744F1B
File CRC32: 15D202D8
ROM SHA-1: 92C3361B9E3B28A51FD30E7845C988A6D576EE65
ROM CRC32: 9E4E9CC2