Werster referring to when he says “And I got trips on the money” at the end of a Pokemon Blue run

They are tiers of the Global Starcraft League, held by GomTV in Korea. Players who qualify for Code A (which is inferior to Code S) are considered vastly superior to your average Grandmasters player, even if you can generally find them in GM on the ladder.

From Liquipedia:

The GSL is an elaborate tournament which is separated into two tiers:

• Code S contains the top tier players who are competing against each other to win the GSL.
• Code A contains players who are competing against each other to enter Code S.

You will also hear them mention when someone is or was a Code S champion. This title is considered the biggest there is to win in the SC2 scene, and hence, the current and past champions are always big contenders at other events.

Based on Smashpedia, invincibility frames are the period of time (measured in frames) during which a character cannot be damaged.

During the invincibility frames, most damage cannot be dealt to the character, and most invincibility will render the player invulnerable to disable as well.

Invincibility frame can be applied to game for skillful playing, like rolling/dodging, and special skills/items. It could also be added to prevent instant death upon respawning. Here are some examples:

• Dark Souls: Rolling
• Monster Hunter: Rolling
• Bastion: Rolling
• Guild Wars 2: Rolling
• DotA 2: Certain skills
• League of Legends: Certain skills and items
• Diablo 3: Certain skills
• Ikaruga: Respawning
• Gradius: Respawning