You don't need someone to test for you. I've got a rpgmaker project I am very slowly working on. The stuff he is missing is absolutely basic stuff, that shows he's never even launched his own game project. Somehow. I have no idea how the fuck he's getting anything done at all (spoiler, he's not). Simple map transition events, testing is as simple as launch game, step in event location. Observe if map changed. Step in transition event on new location and see that you get returned to the previous map.
The constant draw layer issues and collision issues with tiles is literally all set in one place, and testing them requires just noticing that your sprite is standing on TOP of the foreground. Or inside a table. Once the sprite sheets have been fixed, they are good to go. But the same furniture that had no collisions in Ra's bedroom still has no collisions in Hora's realm. That's what, 6 months of not opening the sprite sheet and clicking on the offending tile once.
When I work with RPGmaker, every event gets tested as soon as it's finished, and the entire map/chapter/zone gets tested multiple times during it's creation until it's complete. The entire game gets tested repeatedly as more stuff is added. Is there still bugs? Maybe, but they are more likely to be of the 'things break under these particular and specific situations' that require actual testers, not 'things are so broken the dev has to be braindead to have missed it'.
Seriously, forgetting or breaking transition events is on the level of... I dunno, a taxidriver forgetting to take the taxi out of park. Releasing the game even as EA with that mistake still in place is the equivalent of the taxidriver sitting there for half an hour revving his engine in park, and running the meter while you yell at him that he's not moving.
Creating games in rpgmaker is extremely easy. All it takes is an idea for a story, and time. Deka has a story, he's got a decent artist which many lack, and he aught to have the time considering how many paypigs he's got on patreon. And yet he is failing in the most embarrassing way possible.