it seem that as the anime goes on, Pikachu learns more and more moves and kombinations of moves for inhanced offence and defence.
but in the latest ep. Pikacu seem as if he forgot alot! he uses only 4 attacks.
can it be that the anime is like the game; a pokemon can know only 4 attacks?
and to learn a new one it must forget one?
so my question is: why doent pikachu uses all the attacks he learnt and the tactics of all the past seasons?