a way to emulate what it needs maybe?
like 3danalizer does here Using 3D Analyzer to play games without graphic Card ~ Pro Hack
new tech. intergrated video cards should still be able to play old games especially 10 year old games reguardless of their (esrb) or whatever it is. rating. ( E for everyone) M for mature etc.
mohaa was built from quake 3 engine, which is just about acient status now.