Mario Bros. is an action platformer game for the Nintendo Entertainment System.

This is a full graphics hack that revamps Mario Bros. (Classic Serie) with a Metroid aesthetic. It was produced in celebration of Metroid's 35th anniversary. Many elements were either created or heavily edited specifically for this hack. The player characters, for example, are completely redrawn. There's also a new title screen and several text modifications to better fit the theme.

{[ CHOZO BROS. 3 ]}

Play as the giant* thorned lizard, Kraid! In two-player mode, the second character is Fake Kraid. *Not actually giant.

-ENEMIES-
-Shellcreeper: Geega
-Sidestepper: Nova
-Fighter Fly: Geruta
-Slipice: Viola
-Fireball: Kraid Spike
-Icicle: Skree

Statues will drop Bombs when creatures are destroyed. Get bonus points when you take them.

{[ CHOZO BROS. 4 ]}

Play as Ridley, Samus' archnemesis, lord of Norfair. Player 2 controls the unused Fake Ridley.

-ENEMIES-
-Shellcreeper: Gamet
-Sidestepper: Stone Head
-Fighter Fly: Rio
-Slipice: Ripper II
-Fireball: Ridley Fireball
-Icicle: Ripper

Space Jump tanks are delivered via television after you defeat enemies. Seize them for more points.

Original graphics and edits created by Zero Meaning.

Please note that this hack is for the special edition Mario Bros. (Classic Serie) from 1993 that was only released in Europe. For this reason, the game will only run at the correct speed on PAL systems.
FCEUX will play in PAL automatically if '(Europe)' is in the file name.
For an added challenge, play on a non-PAL system. But beware, everything will be a little faster!

Video longplays without commentary can be found here:
-Chozo Bros. 3: https://youtu.be/Flv2_64r0GA
-Chozo Bros. 4: https://youtu.be/Ms2guw5_fV8

If you enjoyed these hacks, you may also enjoy Chozo Bros. 1+2: https://www.romhacking.net/hacks/6118/

Database match: Mario Bros. (Europe) (PAL-MC-0, Classic Series)
Database: No-Intro: Nintendo Entertainment System (v. 20210216-231042)
File SHA-1: 279EFE66203114FC8A5335CB2710FF8F1CD6BBF5
File CRC32: 5F1DFF9C
ROM SHA-1: DBD1BF833A9D89A9AC41CCCED0FB508074A489D1
ROM CRC32: A1C0DA00