So glad to see this have a English translation. 
Gave this patch a go. Everything looks great. Whilst on the emulator after patching it. It did say it had a bad checksum. But managed to fix the checksum so I can play this on my SD2SNES Flash cart on my PAL Super Nintendo console which plays absolutely wonderful.
When I first played the original Japanese one, I couldn't work out what's what on there. But thanks to your Translation patch. Now I can see what it says in English.
Many thanks for translating this for us, Zaffo.
Congrats to you for getting this hack of yours feature on the home page's Featured entries.
