Segagaga
From Sega Retro
Segagaga is an RPG with resource-management elements, and was developed by internal Sega team Hitmaker (formerly AM3), also responsible for SegaSonic the Hedgehog. The game is set in 2025, with Sega commanding just 3% of the home console market and their last project making little impact. Out of desperation, the Segagaga project is initiated, in which two young children are to pull Sega from the brink of destruction and gain complete control of the market from the evil DOGMA Corporation in just a few years.
Many Sonic Team properties show up in cameos within the game. As well making brief appearances in the intro sequence and created software within the game, items such as the "Piko Hammer" are available. Also, characters such as Nei (from Phantasy Star), Ristar, NiGHTS and Sonic the Hedgehog can be recruited as programmers for your team.