All the shop items available for purchase from the start. Though you can't see the item images, like the screenshot, its still is possible to select, buy and equip items normally as usual.
2.2: fixed burner man bug while playing with mega man
2.1: Expanded compatibility.
2.0: Items on shop are all always available without the need to press select (still without image).
Database match: Mega Man & Bass (USA)
Database: No-Intro: Game Boy Advance (v. 20210227-023848)
File/ROM SHA-1: 7610847B331870D4338E5AC894B36E55E2BEC5A0
File/ROM CRC32: EEA68C2E