If it was shown in the manga, can it be used in our RP?

[Aízen]

In the manga, the first tsuchikage used flight technique, Kakashi use EIG in part 1 when he was cliff climbing, NAGATO had y/y, deidara immune to gen, neji(in a game) moved at the speed of 1st gate + lee without weights, etc. etc.

Just wondering since I saw it in a 2011 thread

[Typhon]

Each ability has different restrictions.

The flight technique is available to Mu and Tsuchikage.

EIG has a separate set of restrictions regardless of the bio being used.

Yin/Yang requires special permission and training, regardless of the bio being used.

I believe Deidara is immune to genjutsu up to A-rank, though don't quote me on that.

Character's base speed are all based on your rank and training in taijutsu.

[Cursed Prince]

I was wondering since I have young kakashi could I use Gates as well

[Madāra Uchiha]

To add on to what Typhon said, the game thing shouldn't count for Neji's speed. There's a EIG jutsu that Lee uses that makes him move at the speed of light. All the stuff from the games can't translate over correctly. Also, I do believe that the only canon bios you can have the gates on are in fact, Lee, Guy, and Kakashi. It just wasn't listed in the rules about Kakashi because at the time, I honestly forgot about him. Also, going by if it's shown in the manga, then alot of ninja would have access to either yin or yang since shadows utilize yin as well as well as other KGs/hiden abilities.

I was wondering since I have young kakashi could I use Gates as well

Only is you pass the respective tests for the gates.