there is a glitch pokémon in pokémon yellow called ♀. it is ordinarily impossible to fight because its cry is singing glitch noises at you forever. it is also 80ft tall and weighs over three tons.

greg coomer did design work for valve around the release of half-life 1, which led to a locker with his surname being put in the early part of the game. the same greg coomer is credited as an illustrator for earthbound's manual, though his first name is spelled 'gregg'.

in earthbound zero stalling any battle for 255 turns will cause the game to say 'the battle lingers on'. ironically, the battle will then end and the game will just kind of assume you won.

megaman 7 was made in three months. grand theft auto 6 has been in development for eleven years.

if you play sonic heroes as team dark and look at rouge in first-person she will wink at you. she is the only character who reacts.

the first five touhou games sound different depending on which sound chip the PC-98 has. the YM2203 version of bad apple!! sounds fucked up because two of the lead channels are really quiet for some reason. this wasn't a problem in the trial version and ZUN did not fix it for touhou 5's music room.

in-universe, master chief and the arbiter spend most of halo 3 fighting alongside each other in close proximity. despite this, master chief says exactly one word to the arbiter in the entire game. this is 'worse', in the intro cutscene to mission 5 ('floodgate').

half-life 2 has a moving platform in one of its final levels. you can press the use key on a specific part of it and this will allow you to control it because it reuses code from the tram in half-life 1.

there is a door sprite for sonic 2's chemical plant zone and death egg zone that is glitched. it looks natural enough in gameplay but the left half of the sprite is shown again for the right half instead of the correct right half.

you can unlock secret prepromoted 'hero' units in xcom (2012) by changing a soldier's name. aside from the obvious ones (e.g. sid meier) one of the names is otto zander, who was the protagonist of an old let's play of xcom (1994) available on lparchive.