A perfectly fine 8-bit platformer. Nothing specifically unique - but sometimes a little bit of solid platforming is perfectly fine! Music is great!!
Story is a little meh - and the use of text is a poor way of delivering story in an 8-bit game. Some cutscenes might flesh out the story a little - I only realised Kon was cursed when I reached the end of the game (clearly wasn't paying attention on the opening text - it is a little "yada yada yada").
Surprised anyone had problems with the controls. For the record, I had no problems with the controls. Initially a little flustered that I couldn't swing my sword while jumping - but got over it. Jumping between vines was a little tricky - but when was it not?
Having to go back to levels to grind to get more kupons to buy stuff at Sheepadeep's is annoying - what did I miss some kupons? I know I didn't spend any on hearts or bombs or purples - you can collect all these things in-game (well purples only if you're grinding...). I know many of the old games do this to increase replay value - but maybe modern retro games can get over this?? If you don't miss any kupons and don't spend kupons on other items - then its like a little reward to be able to immediately afford that shiny new sword!!
Hint to those who haven't played yet: once you get sword number 2 of 4, do the Pigasaurus level until you have 999 kupons (make sure you destroy all the grass too - you get about 50 kupons per level). This way you shouldn't have to replay too many more levels.
And once you realise there are hidden areas, they are really obvious... I suppose you didn't want them to be too hard to find? I accidentally found the one with the purple kupon - then when "hah!" I know where another one is!