Thumby
https://thumby.us/images/Thumby-handful.jpg
Processor: Raspberry Pi Pico RP2040 Processor Memory 2MB total storage
Connectivity micro USB for programming & multiplayer using Thumby Link cable
Outputs 72×40 px Monochrome OLED Display, Piezo Speaker
モノクロディスプレイなのが渋い
Inputs 6 tactile buttons (4-way d-pad, 2 action buttons)
Power Power switch, 40mAh Rechargeable LiPo Battery, ~2 hours of gameplay
Dimensions 1.2 × 0.7 × 0.3" (29.5 × 18 × 8.5mm) - Sturdy polycarbonate plastic case with a built-in rechargeable battery and buzzer
Programming MicroPython using the Thumby Code Editor or Arduino Code Editor - create your own games! Multiplayer support via Thumby Link cable
inajob.icon
サンプルゲームも結構ある
自作で同等のゲーム機を作るのも簡単そう