I guess that I'm the first person who published casket version/edition playthrough. That's my second attempt on this video, because I didn't record the first one. It took 40min to complete even if the changelog says that it takes about 15-20min.
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Wow, thanks for this! I got lots of insight. There's the room at 12:13, which certainly is a heart breaker. 18:22? -- I'm so sorry... I should go back and polish this jumping mechanic. Moving on: 23:12 -- MLG move right here. By the way, you got the casket near the very end in a neat way; I didn't realize you could use the secret upgrade for this! And 30:20 -- definitely an illegal chess move but I'll let it slide.
I'll go ahead update the time it takes to beat the game! Thanks again!