Digiblast (Nikko) portable console cartridge pinout.

[buggii]

32 pin GameBoy-like cartridge:

1: VCC
2: VCC
3: VCC
4: Pull up/down?
5: NAND R/B#
6: GND
7: NAND IO8
8: NAND IO7
9: NAND IO6
10: NAND IO5
11: GND
12: NAND IO4
13: NAND IO3
14: NAND IO2
15: NAND IO1
16: GND
17: NAND ALE
18: NAND WE#
19: NAND RE#
20: NAND CE#
21: NAND CLE
22: GND
23: N/C
24: N/C
25: USB DM
26: USB DP
27: GND
28: EEPROM SCL
29: EEPROM SDA
30: GND
31: VBUS
32: GND

By Cyanic

[Ancyker]

Possible adapter for it:

snes-to-db_rev1_gerber.zip

If someone confirms it works/writes the firmware core I will commit the KiCad project.

[Ancyker]

Here are the data sheets for the 2 chips the OP has carts for:

DS0043DMTSOPR1.11_062405.pdf

K9F1G08Q0M-YCB0.PDF

[Ancyker]

If no one has a cart to test with and knows how to make a new core then if someone who has a cart gets an adapter made I will try to write the core blind.