Henry Hatsworth in the Puzzling Adventure

As the player defeats enemies on the top screen, they are sent to the bottom screen in the form of blocks.

While the game is an action-platformer on the top screen, once enemies are defeated by Hatsworth, they are sent to the bottom screen as puzzle blocks.[1] The puzzle game on the bottom screen plays much like Nintendo's Puzzle League, as blocks need to be linked in a chain of three or more of the same color to be cleared, and any blocks resting on top of the cleared ones will fall into their place, potentially leading to a chain reaction of blocks being cleared if they fall into place and end up touching more of the same colors.

As the blocks on the puzzle screen rise, the enemy blocks that touch the upper edge of the screen are revived and can attack Hatsworth again on the top screen.[1] The player can prevent this by swapping blocks to form groups of three or more, causing them to be destroyed, and their energy to add to the "Super Meter".[1] Certain blocks may also power up Hatsworth's attacks,[1] or restore his health, while others may hinder the player. If the Super Meter is filled, Hatsworth becomes younger, and his health increases.[2] If it is then filled to double its capacity, the player can activate a mode called "Tea Time", causing Hatsworth to pilot a mecha (called his Robot Suit) and become invincible until the Super Meter depletes.[2] Using the money earned by defeating enemies or collecting treasure, the player can return to Hatsworth's assistant's shop periodically to buy various upgrades.

The concept for Henry Hatsworth started as a prototype in Adobe Flash and was initially called Monkey Business. In a 2009 interview at Nintendo Life with Kyle Gray, where Kyle was asked if it was difficult to get Henry Hatsworth made at EA, Kyle had this to say. "Surprisingly, it wasn’t too bad! I initially pitched the swell gents at Tiburon with a project idea which basically involved me doing some crazy stuff in Flash on my own. Luckily, they totally approved it, so I started making little DS game prototypes– which gradually led to the Monkey Business prototype, which ultimately became Hatsworth."[3]

Henry Hatsworth in the Puzzling Adventure was created by Kyle Gray, who founded the Experimental Gameplay Project with Kyle Gabler, the creator of World of Goo, in 2005.[2] Gray led a seven-man team at EA Tiburon to develop the game.[2] The seven man team included; Kyle Gray as Director, Peter Ong as Lead Designer, Ryan Pijai as Lead Programmer, Bob Nystrom as Tools Programmer, Andrew Malesky as Animator, Jay Epperson as Art Director and Loel Phelps as Level Designer and Tileset Artist.

The art of the game was envisioned by art director Jay Epperson, using a mix of wood grain and paper-cut themes.[4]

The original soundtrack of the game, composed by Gene Rozenberg, was released by EA Games for free download on its website. It has since been removed after EA's redesign of the game's website.[5]

Henry Hatsworth in the Puzzling Adventure received "favorable" reviews according to the review aggregation website Metacritic.[6]

IGN's Mark Bozon commented that the game was "completely old school in design and execution", featuring "pop-up brawling, a wall jump that feels like Mega Man X, Mario-like platforming, and a great blend with the puzzle aspects". He commended the game's "beautiful" art style, but criticized the game for technical issues, and called the gameplay "unforgiving at times".[15] GameSpot's Tom McShea also called both platforming and puzzle aspects "first-class" and "an absolute blast", with "tight controls and varied environments" as well as "fast and frantic" puzzle gameplay, but was frustrated by "the high difficulty in the later stages".[13]

Henry Hatsworth was nominated for the "Outstanding Achievement in Portable Game Design" Interactive Achievement Award from the Academy of Interactive Arts & Sciences,[19] and for both Genre Award and Platform Award in GameSpot's Best of 2009.[20][21]

• Henry Hatsworth in the Puzzling Adventure at MobyGames