| Ayrton Senna's Super Monaco GP II - Complete 1991 Season | tag2015 | Ayrton Senna's Super Monaco GP II | Racing | GEN | G, T | Improvement | 2.0 | 22 Mar 2014 |
| B-Button Dash | A.D.R.I.A.N | Final Fantasy III | Role Playing | NES | GP | Improvement | 1.0 | 18 Feb 2017 |
| B-Wings Unlimited Morphs | doomguard | B-Wings | Action > Shooter | NES | O | Improvement | 1.0 | 26 Nov 2015 |
| Back From The Source | Griever | Battle City | Action | NES | L, GP | Complete | 1.0 | 01 Jan 2008 |
| Back to the Future (Enhanced) | pacnsacdave | Back to the Future | Action | NES | G, S, T, GP | Improvement | 1.1 | 18 Apr 2020 |
| Back to the Future (Music Fix) | pacnsacdave | Back to the Future | Action | NES | S | Improvement | 1.0 | 18 Apr 2020 |
| Backstabu | Leet Sketcher | Final Fantasy III | Role Playing | SNES | G | Bug Fix | 2.2 | 13 Jul 2017 |
| Backwards Jump | Leet Sketcher | Final Fantasy III | Role Playing | SNES | G | Bug Fix | 1.3 | 20 Jul 2017 |
| Bad Decoration | Lenophis | Final Fantasy III | Role Playing | SNES | G, GP | Bug Fix | 1.0 | 21 Jan 2007 |
| Bad Dudes Facelift | chronix | Bad Dudes | Action > Beat 'Em Up | NES | G, GP | Improvement | 1.0 | 10 Nov 2018 |
| Balance Spell MP Cost | Kethinov | Secret of Mana | Role Playing > Action RPG | SNES | GP | Improvement | 1.4 | 29 Dec 2019 |
| Balanced Bosses | Zimgief | Sparkster | Action > Platformer | SNES | GP | Improvement | 1.0 | 05 Jan 2020 |
| Balloon Fight - 4 players hack | mishra | Balloon Fight | Action | NES | GP | Improvement | 1.1 | 31 Jan 2020 |
| Balloon Mario | Rinkaku | Balloon Fight | Action | NES | G | Improvement | 1.0 | 01 Jan 1999 |
| Banana Prince 2 - The Adventure of Banana Goat | DANGER X | Banana Prince | Action > Platformer | NES | G, S, L, T, GP, O | Complete | 3.4 | 20 Aug 2016 |
| Bandit Kings of Ancient China - Original Chinese Names | Jordiway73 | Bandit Kings of Ancient China | Strategy > Turn Based | NES | T | Improvement | 1.0 | 28 Mar 2017 |
| Banished From Potos on the Honor System | Kethinov | Secret of Mana | Role Playing > Action RPG | SNES | GP | Improvement | 1.0 | 24 Oct 2019 |
| Banon Riding | Leet Sketcher | Final Fantasy III | Role Playing | SNES | G | Bug Fix | 1.5 | 26 Dec 2017 |
| Bare Knuckle 3 / Streets of Rage 3 - Fix Patch | gsaurus | Streets of Rage 3 | Action > Beat 'Em Up | GEN | GP, O | Bug Fix | 1.0 | 05 Sep 2012 |
| Bare Knuckle 3 Boss Palette Patch | gsaurus | Streets of Rage 3 | Action > Beat 'Em Up | GEN | G | Improvement | 1.0 | 05 Oct 2012 |
