Megaman X Legacy Collection stuff aka a massive Downplay that will cause extreme salty-ness.

[Asuka_the_Demonic_Empress]

According to Famitsu, the design is based on Mega Man X4's Ultimate Armor, but with a sleek, blue and white coloring. Thanks to this armor, X is able to choose three of the special weapons he's earned from across the series out of nine available ones, to use in the X Challenges
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This implies that X LOSES the abilities he has from previous battles, and thus, he should only be able to use the mega buster in vs threads unless specified which set of armors he has on every battle, andf since the upgrades also dissapear from game to game, you cannot have ultimate armor X using shotgun Ice.

You just cant anymore.

 

[DraycoMakargo]

In Megaman X5 or 6 Alia says somewhere that X trashes his stuff every game and she repaired the falcon armor for him. So that's been a thing sort of...

 

[Kazuma_kuwabara]

Are you using a non canon mode where you can kill 3 times the same boss and kill megaman x while using megaman x?