| Baseball Stars 2014 Bases Reloaded | shadowinthelight | Baseball Stars | Sports | NES | G, T, GP | Improvement | 1.0 | 26 May 2014 |
| Baseball Stars Graphic Update | grg | Baseball Stars | Sports | NES | G | Improvement | 1.0 | 01 Apr 2010 |
| Bass | Hyperganon | Mega Man | Action > Platformer | NES | G, L, T | Complete | 1.0 | 05 Aug 2002 |
| Batadvantage mod | Vikfield | The Adventures of Batman & Robin | Action | GEN | GP | Improvement | 1.0 | 07 Sep 2018 |
| Batman (Easy) | hiro1112 | Batman: The Video Game | Action > Shooter | NES | L, GP | Improvement | 1.0 | 18 Jan 2008 |
| Batman - how it should have been | wolfamancer97 | Batman: The Video Game | Action > Shooter | NES | G, L, T, O | Improvement | final | 03 Jan 2019 |
| Batman - Playable Ezio from Assassin's Creed | Cakewarden | Batman: The Video Game | Action > Shooter | NES | G, O | Improvement | 1.0 | 30 Oct 2016 |
| Batman - Tweaked Edition | Turambar | Batman: The Video Game | Action > Shooter | NES | G, T | Improvement | 1.0 | 04 Jan 2016 |
| Batman Bros. Co-Op | NesDraug | Super Mario Bros. | Action > Platformer | NES | G, T, GP | Complete | 1.2 | 03 Aug 2019 |
| Batman Color Fix | MacBee | Batman: The Video Game | Action > Shooter | NES | G | Improvement | 1.2 | 12 Apr 2005 |
| Batman Shadows of Gotham | Magnus Nilsson | Shadow of the Ninja | Action > Platformer | NES | G, T, O | Complete | 1.1 | 27 Sep 2014 |
| Batman Simplified | Megafield64 | Batman: The Video Game | Action > Shooter | NES | L | Improvement | 1.0 | 16 May 2015 |
| Batman: Return of the Joker Movement Hack | omega_rugal | Batman: Return of The Joker | Action > Platformer | NES | GP | Improvement | 0.01 | 12 Jan 2015 |
| Batman: The Dark Knight | Osman Color | Batman: The Video Game | Action > Shooter | NES | G, L, GP | Complete | 1.9 | 25 Mar 2017 |
| Battle Ace Cheat Enable | Chris M. Covell | Battle Ace | Action > Shooter | SGFX | GP | Improvement | 1.0 | 01 May 2007 |
| Battle City - 4 Players Hack | Ti | Battle City | Action | NES | O | Complete | 1.3 | 08 Sep 2014 |
| Battle City - 4 Players Hack (Addendum) | Cyneprepou4uk | Battle City | Action | NES | O | Addendum | 002 | 30 Aug 2019 |
| Battle City - Christmas Edition 2014 | Smasm-94 | Battle City | Action | NES | G, L | Complete | 1.0 | 24 Dec 2014 |
| Battle City - LJC Edition | LJC | Battle City | Action | NES | L | Complete | 1.2 | 01 Jan 2011 |
| Battle City - New Years Edition | Xak | Battle City | Action | NES | G, L | Complete | 1.0 | 01 Jan 2010 |
