He's not very good at these games, is he?

Possibly getting motion sick from 3d game?

Reader-added tags include "3D motion sickness", "Super Mario 64", and "Ma Rio" ("Mario" in kanji again).

Our susceptibility to motion sickness can change with age. The twitchy coked-up hyperfast games of our youth might not be so playable today.

Sitting close to a grainy blurry CRT with crap resolution and refresh rate is probably the bigger culprit. People don't remember just how bad cheap CRTs were. The more expensive late-model ones were alright.