GALAGA: MARIOGA Edition or just "MARIOGA" is a hack of Galaga for the NES / Famicom.
List of features, additions and changes:
1) Modification of the title screen of the game.
2) Added changes to the text of the game to adapt it to the new theme.
3) Added modification of all the original sprites of the game and replaces them with sprites from the games of the Super Mario Bros saga.
https://www.youtube.com/watch?v=SMpRtvOR61I
Database match: Galaga (Japan)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 4C202DADDF0107025FB9F17432A8FDDC710D55C6
File CRC32: 628D22DE
ROM SHA-1: 13854EF3982A19317B8AB96A6CA48DB71192A20A
ROM CRC32: E911BCC4