I adore the idea of crafting your own uroji piece by piece like an actual beyblade !
I think the game would really benefit from visual indicators of how exactly my actions are affecting the uroji itself, and not just the character sprite bouncing and spinning around. Or even just increasing the amount of influence we have on the uroji ! The chaos and action, while cool and sick, makes it feel like I have little to no influence on how the uroji behaves - especially on arenas that are really tightly packed.
That said, it would be incredibly cool to see the idea explored further!