[an, slightly modified (one extra line), CC from my post to Philia on Mystic Knight Maya]
I think the developer of happy heart panic is struggling to combine the story with the content he adds.
This is why I think updates are slow; you have to balance either the lore of the previous game in which Whispy was rescued by Sam, or focus on one of the new areas.
It did receive an update to the pizza parlor with an few new rooms, along with the ranch stage getting an few new enemies. The lab was also redesigned hinting that some cut content may end up being enemies for Whispy and Sam to get their kix out of in the future.
But yeah; I honestly empathize with the developer rather than villainize him. What makes the development even harder is people CONSTANTLY leaking game data such as spriteworks and animations: these leaks are usually not the final product and the Dev is obviously going to revise these, but leaks make you have the expectation that the unfinished spirtework is one to one of how it'll be animated in the final product. In my opinion: That puts stress on the developer to exceed peoples expectations, due to said leaks, because the leakers expect it to be an more polished copy with said animations including in.
And don't even get me started on the precision of alligning hitboxes with spritework, making hitboxes that conform around an entire sprite is very exhausting and requires utmost precision. It's what makes games like Terraria very hard to copy / clone because Terraria got that down to an tee, whereas minecraft uses an block by block hitbox instead (When something enters player block vicinity, I.E., enemy, register hit detection, calculate damage, deal damage.)
HHP and games like these try to be as precise as possible, but with every new enemy you make; you must also update the hitboxes of the player, and all the things they can go into: sliding, crouching, crawling, everything.
"I don't care about quality, I want update now" is an sentiment all too quickly shared by the majority of the people here.
I don't think many understand that developers go through hell for our happiness.