"Poyooo! Po poyoo!," it laughs, as it wiggles up and down with the force of Budmon's bouncing.

She is careful not to dislodge it or impale it, which means sometimes taking longer glidey hops instead of just up-and-down up-and-down. "Bud! Bud bud!" she chirps happily. 

"Po poyoooo"mon Digivolve to...

The white blob on her head starts to glow from within.

Its fringe firms up and shapes itself into little limb-nubs, as its overall surface hardens from jelly to skin.

Digimon! Digital monsters!

It grows a pair of long ears (not that Budmon can see those yet) and some little teeth.

Digimon!

And, finally, it grows to nearly her own size.

"Tokomon!"

???What just happened???

"...Bud???"

"Hi!!," it says, then carefully tumbles around her spikes to flop on the grass.

"Hi! You changed!" 

"I changed!," it says. "You changed and you jumped and I wanna jump and I changed!"

And it proceeds to attempt to hop with its little legs.

"I changed!" she agrees. "You changed," she adds to hop friend. 

"Yeah! I can hop UNLIMITED HIGH!"

"Bota!"

"They cannot hop as high so we are doing HOPPING PRACTICE," it explains.

"Oh! Oh! That sounds good! Do you want to practice hopping?" she asks Tokomon. 

"Yeah!!"

Hopping is going poorly with its unjointed limb-nubs. It switches to copying Botamon's blob-style squish-hopping.

She boops Puroromon with her leaf and leaps into the air. 

And they can hop!

Hopping practice seems to work like this: Puroromon flies around within reach of the ground. The other players try to hop at it. Puroromon tries to dodge out of the way.

Budmon is a much more agile hopper than her squishy friend or the white and black blobs, but she might find that advantage somewhat balanced by the need to keep her spikes from touching anyone, making contact only with her leaf.

She very much does not want her spikes to touch anyone! She tries very hard to make her leaf the easiest part of her to boop. 

Hip, hop, hippity hop. Hippity hop and you just can't stop.

They can easily continue practicing this way for a good while. Tokomon will get much better control of its body and jumps, and everyone else will see some effect too - the two smaller blobs more in their jumping power, the two flying ones more in their finesse.

Eventually the white, fuzzy blob will be hungry.

Oh! Budmon can show it the Good Fruits!

Budmon can indeed show it to the Good Fruits! ...Which seem to have gotten quite popular. A few of the plants have no berries left, and the ones with berries are crowded enough that she'd have to squeeze in if she wanted any.

...She cannot squeeze in, she might poke someone with one of her sharp parts. The white, fuzzy blob has no sharp parts, though! She can fetch it some High Orbs! That will presumably not taste like thorns to it because it does not have any. 

Orbs!

It investigates the orbs, finds them much tastier than grass, and sets to eating them by halves. "Bo-ota!," it says, in gratitude.

And its friend, having followed along, starts eating at the other end of the cluster.