This is one of the 16 games that are part of the Game no Kanzume: Otokuyou compilation on the Japanese Mega Drive Mini. According to Moby Games, this was "Originally only available as downloadable games through Sega's Meganet service in Japan". The compilation itself was a SEGA Channel exclusive.
The game is a puzzle game (or "pazzle", according to the compilation's game selection screen) where you have to move around stone blocks to open three boxes in a specific order, which doesn't change, in order to eliminate the ghost that blocks the exit to the next level. You can only kick, carry, or destroy the stones. While it logically doesn't make sense why the archeologist that you play as can only crouch when he's carrying a stone, it makes sense in terms of adding some difficulty to the puzzles. Likewise why he can jump one square high and land on the same floor just fine while carrying a stone, but if he's carrying a stone and drops down one square's height, he's crushed to death. Not to mention that he can fall down the entire screen unencumbered without dying.
There are 39 total levels (the 40th level is the coffin room where you literally don't do anything as the ending text box immediately pops up) with the ability to skip 2 of the first 35 levels. You receive a password after every 5 levels, but since the Mini has save states, I used those instead. That way, when I got to a tough level, rather than running out of lives and having to repeatedly redo the levels I knew the solution to while figuring out the problem level, I could just retry the level giving me the troubles. I found about a half dozen of the levels to be very tough, with two of them I couldn't figure out after probably 2 or 3 (or maybe more) hrs of trying and took advantage of those 2 level skips. When you complete your adventure and make it to the coffin room, the text box tells you what the object of the next adventure will be, and it gives a To Be Continued after the end credits. All four of the games in the series were apparently originally Meganet exclusives.
There's basically no language barrier, as the only Japanese text is found on the compilation's title screen (almost all of the individual games' titles are in English), the screen that tells the basic story and what you'll be doing (which is about as important as knowing what Super Mario Bros.' story is), the pause screen that shows the controls (which you should be able to easily figure out without this), and the ending dialog. The passwords consist of 6 numbers, so you don't even have to deal with the Japanese alphabets if you choose to use them.
