Pizza Boy C vs PyBoy

Pizza Boy C is an Android emulator for Game Boy and Game Boy Color software. It provides save and restore states, fast forward, and slow motion, with hardware joypad support and serial link emulation through WiFi or Bluetooth. Players can adjust skins, graphics enhancements, cheats, palettes, borders, and control layouts. Screenshots can be saved as JPG images or animated GIFs. The maker says the emulator is written in C, targets 60 FPS even on old hardware, and uses little battery power. Pizza Boy C Basic is free, ad-free, and includes save states, fast forward, and slow motion. Pizza Boy C Pro costs 5.99 USD once. Games are not included, so users must supply ROMs. The maker says the apps have no account, analytics, advertising, or crash-reporting SDKs and work almost entirely on-device. Google Play lists no data collected or shared for Basic or Pro.

PyBoy is a Game Boy and Game Boy Color emulator implemented in Python and Cython. It runs from a command line or inside Python programs, supporting automation, testing, and AI experiments. Install it with `pip install pyboy`; documentation links to setup instructions for macOS, Linux, and Windows. The Python interface sends button input, reads memory, and captures screenshots. Its documented hardware-facing API includes the CPU and address space, graphics, audio, cartridge hardware, and input, while leaving internal emulation components and platform-specific window implementations outside the reference. Rendering may be skipped or disabled, and the documentation says parallel instances can improve throughput. PyBoy links to Gym integration instructions and examples for Kirby, Tetris, and Super Mario Land. It supports save states, link cable emulation, and a real-time clock. Supported platforms include Windows 64-bit, macOS, Linux, and Raspberry Pi OS. The project is free under the GNU Lesser General Public License version 3.