Looks like I’ve managed to finish something after many tries.

I didn’t seriously expect to complete it in time so I haven’t posted the used tooling before, but better late than never:

For coding: Intellij IDEA, Kotlin to Javascript compiler, and Pixi.js
For sprites: Corel PhotoPaint
For music: Reaper and Native Instruments FM8

This is a pretty simple game, so there weren’t many incidents to speak of. The most serious stumbling block was my lack of sprite drawing skills, had to spend quite a while adjusting values so that the ground tiles didn’t look like being above the wall ones, etc. Also, getting used to Pixi.js beforehand would have probably saved me quite a bit of API Reference browsing time.
Anyway, the result is here

Looking forward to playing everyone’s entries!