| Total (unique) | 1405 |
| Total (including duplicates) | 1443 |
| Total North America | 1021 |
| Standalone ("Challenge") Games | 946 |
| Video | 28 |
| Multipacks | 27 |
| Software | 1 |
| Total Europe | 104 |
| Total Japan | 73 |
| Total eReader | 17 |
| Total Homebrew | 20 |
| Total Repros | 9 |
| Total DS | 61 |
| Total 3DS (physical) | 36 |
| Total 3DS (digital) | 63 |
| Total paid | $14157.30 |
| Total value | $24409.36 |
| Game Name | M | B | Date Acquired | Purchase Price | Value | Net/loss | Category |
|---|---|---|---|---|---|---|---|
| Mega Man Zero 4 | 5/15/2019 | $2.75 | $24.99 | $22.24 | USA | ||
| Mega Man: Battle Chip Challenge | 4/9/2019 | $1.84 | $19.99 | $18.15 | USA | ||
| Men in Black: The Series | 3/5/2019 | $0.71 | $3.00 | $2.29 | USA | ||
| Metal Slug Advance | 5/9/2020 | $36.36 | $76.13 | $39.77 | USA | ||
| Metroid Fusion | 2/12/2019 | $3.39 | $43.00 | $39.61 | USA | ||
| Metroid: Samus Returns | ✔ | ✔ | Unknown | Unknown | $38.76 | $0.00 | 3DS |
| Metroid: Zero Mission | 9/23/2021 | $83.14 | $64.00 | $-19.14 | USA | ||
| Micro Machines | 8/15/2022 | $35.62 | $10.73 | $-24.89 | EUR | ||
| Midnight Club: Street Racing | 6/10/2019 | $1.90 | $5.80 | $3.90 | USA | ||
| Midway's Greatest Arcade Hits [USA-1] | 4/25/2019 | $2.87 | $5.00 | $2.13 | USA | ||
| Midway's Greatest Arcade Hits [USA] | 8/16/2022 | $6.48 | $5.00 | $-1.48 | USA | ||
| Mighty Beanz: Pocket Puzzles | 8/6/2019 | $2.58 | $5.41 | $2.83 | USA | ||
| Mike Tyson Boxing | 9/15/2021 | $12.11 | $16.96 | $4.85 | USA | ||
| Millipede / Super Breakout / Lunar Lander | 4/9/2019 | $1.84 | $4.96 | $3.12 | USA | ||
| Minna de Puyo Puyo | 8/18/2022 | $20.26 | $11.73 | $-8.53 | JAP | ||
| Minority Report: Everybody Runs | 2/26/2020 | $2.74 | $6.26 | $3.52 | USA | ||
| Mission: Impossible: Operation Surma | 8/6/2019 | $2.58 | $7.41 | $4.83 | USA | ||
| MLB Slugfest 2004 | 6/23/2022 | Unknown | $13.84 | $0.00 | USA | ||
| Mobile Suit Gundam Seed: Battle Assault | 3/11/2020 | $4.69 | $35.99 | $31.30 | USA | ||
| Momotarou Matsuri | 6/25/2020 | $1.68 | $1.68 | $0.00 | JAP |