Game Boy I

Ikari no Yousai

Almost every single basketball game for the Game Boy follows all the rules, even if it is just one on one.  It's annoying.

In Your Face

Indiana Jones and the Infernal Machine

Initial D Gaiden (emulated poorly I think)

Inspector Gadget

International Superstar Soccer

Iron League

Yes it's totally a linear Megaman-like.

With...interesting skills.

Itsudemo Nyanto Wonderful

Itsudemo Pachinko GB