Hi there :D
Thank you for playing & really appreciate the comments! I included the walkthrough/explanations for each of the different levels in "Reward-protected.pdf" under the downloads section (but you'll have to unlock it first haha). Did you manage to view it? Also, I do understand what you mean by including a hint button & that was definitely one of my considerations... but since I intended this game to be pretty cryptic and make players rack their brains, I didn't want to give such easy access to hints & decided to include them on a separate page (i.e. discussion threads).
p.s. My inspiration for this puzzle game was Notpron by David Münnich - do give it a try if you enjoyed my game but be warned that it's exasperatingly challenging LOL