No battery cover. Tested and works. Rumble feature also works. See photos for more details. No battery included. Photo of handheld to show that it works (not included).

The product is a Nintendo Game Boy Pokemon

Pinball cartridge with a tested rumble feature. The game, released in 1999, is a pinball and arcade genre game published by Nintendo. It is part of the Pokemon franchise and has an E10+ rating, suitable for everyone 10 and older. The game is in NTSC-U/C (US/Canada) region code and was manufactured in Japan. It does not come with a battery cover but still provides an exciting gaming experience for fans of both pinball and arcade games.