Henry Halfhead is a fun, short platformer with light puzzle elements, where you play Henry, who has half a head (the top half, to be precise). There are 30 achievements in Henry Halfhead’s achievement list, covering a bunch of wacky activities and challenges. Here is our guide to help you unlock the 5 Seconds Rule achievement in Henry Halfhead.
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5 Seconds Rule Achievement Guide
The 5 Seconds Rule achievement can be unlocked in the first level of the game, when Henry is a baby. Once you have access to the dining room, where Henry is celebrating his 3rd birthday, you’ll spot a delicious-looking cake.

Next to it is a knife that you can become to cut the cake so you can have a slice, or 5!

Cutting the cake will split it into slices. If one of them doesn’t fall on the floor, nudge it off the surface it is on. Or, you can become the cake and move it onto the floor!


Once Henry has consumed at least one slice of cake off the floor, the 5 Seconds Rule achievement will pop.
That was our 5 Seconds Rule Achievement Guide for Henry Halfhead! We hope you found it helpful, and you can check out more guides for the game below.
Henry Halfhead Guides
- Henry Halfhead Achievement List
- Deep Fried Achievement Guide
- High Note Achievement Guide
- Delicious Treat Achievement Guide
- Soapy Flight Achievement Guide
- Through The Ceiling Achievement Guide
- Taste The Rainbow Achievement Guide
- Frequent Flyer Club Achievement Guide
- Beans For Breakfast Achievement Guide
- Book Worm Achievement Guide
- Fashionista Achievement Guide
- Come Prepared Achievement Guide
- Toigliatelle Achievement Guide
- Puzzle Beginner Achievement Guide
- Puzzle Amateur Achievement Guide