Collections of entries submitted to BKZXs and other short (typically 60 minute) informal MZX competitions.
| Name | Author | Released | Rating | DLs |
|---|---|---|---|---|
| BKZX - Hive Mind | Various | 2020-07-10 | No reviews. | 0 |
| BKZX - Fishing | Various | 2021-09-18 | No reviews. | 16 |
| BKZX - Teenage Mutant Ninja Turtles | Various | 2012-03-29 | No reviews. | 17 |
| BKZX - Spiralling Complexity | Various | 2021-05-15 | No reviews. | 21 |
| BKZX - The French / Big Cities | Various | 2003-04-22 | No reviews. | 23 |
| BKZX - The Antarctic | Various | 2009-01-20 | No reviews. | 23 |
| BKZX - Traffic Jams | Various | 2022-02-12 | No reviews. | 23 |
| BKZX - Tag Team | Various | 2020-03-28 | No reviews. | 23 |
| BKZX - Killer Potatoes From Neptune | Various | 2004-04-21 | No reviews. | 24 |
| BKZX - The Opera | Various | 2005-09-01 | No reviews. | 24 |
| BKZX - Pie | Various | 2002-11-28 | No reviews. | 25 |
| BKZX - Teeth | Various | 2022-02-05 | No reviews. | 25 |
| BKZX - The Mail | Various | 2008-11-30 | No reviews. | 27 |
| BKZX - The Internet of Things | Various | 2019-03-24 | No reviews. | 27 |
| BKZX - Monkeys / Dietary Supplements | Various | 2008-01-10 | No reviews. | 27 |
| BKZX - Ancient Astronauts | Various | 2012-07-25 | No reviews. | 29 |
| BKZX - The Evil Defence | Various | 2005-11-21 | No reviews. | 29 |
| BKZX - Set It And Forget It | Various | 2022-03-05 | No reviews. | 29 |
| BKZX - Romance | Various | 2005-08-13 | No reviews. | 30 |
| BKZX - Good Graphics | Various | 2005-10-22 | No reviews. | 30 |
| BKZX - Graveyard Shift | Various | 2008-12-15 | No reviews. | 30 |
| BKZX - Paint | Various | 2022-11-12 | No reviews. | 30 |
| BKZX - Breakfast | Various | 2005-03-09 | No reviews. | 31 |
| BKZX - Racing | Various | 2005-03-13 | No reviews. | 31 |
| BKZX - Shields | Various | 2020-04-12 | No reviews. | 32 |
| BKZX - Cables | Various | 2022-02-16 | No reviews. | 32 |
| BKZX - Groundhog Day | Various | 2009-07-06 | No reviews. | 34 |
| BKZX - Sports Mascots | Various | 2020-04-19 | No reviews. | 34 |
| BKZX - The Void | Various | 2022-02-23 | No reviews. | 34 |
| BKZX - Relaxation | Various | 2020-09-05 | No reviews. | 35 |
| BKZX - Cloning | Various | 2020-04-19 | No reviews. | 36 |
| BKZX - Takeout | Various | 2020-05-04 | No reviews. | 36 |
| Early BKZX Pack | Various | No reviews. | 38 | |
| BKZX - Power Tools | Various | 2020-11-27 | No reviews. | 38 |
| BKZX - Eyeballs | Various | 2019-01-29 | No reviews. | 42 |
| BKZX - Outsourcing | Various | 2019-02-17 | No reviews. | 43 |
| BKZX - Low Battery | Various | 2020-09-14 | No reviews. | 43 |
| BKZX - Time Delay | Various | 2021-02-22 | No reviews. | 45 |
| BKZX - Panic Mode | Various | 2020-10-10 | No reviews. | 48 |
| BKZX - Dead Malls | Various | 2019-01-12 | No reviews. | 50 |
| BKZX - Unstoppable | Various | 2020-08-29 | No reviews. | 50 |
| BKZX - Fans | Various | 2020-12-14 | No reviews. | 50 |
| 2019 MZXCon BKZX - Raffles & Banned | Various | 2019-07-27 | No reviews. | 51 |
| BKZX - Oversized | Various | 2021-01-18 | No reviews. | 51 |
| BKZX - House Arrest | Various | 2018-01-23 | No reviews. | 54 |
| BKZX - Weezer & Babymetal | Various | 2019-03-09 | 54 | |
| BKZX - Insomnia | Various | 2021-01-01 | No reviews. | 54 |
| 2017 MZXCon BKZX - Waiting Rooms | Various | 2017-07-29 | No reviews. | 57 |
| 2018 MZXCon BKZX - Adhesives | Various | 2018-07-14 | No reviews. | 57 |
| BKZX - Sky | Various | 2008-12-04 | No reviews. | 61 |