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Cart [#46035#] | Copy | Code | 2017-11-09 | Link
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"After Miracle, Techno, and Shinobi, Alex has found yet another world to adventure in, and it wasn't easy! Cramming yourself into a world which only exists inside an 8192 token limit is no mean feat! But that's no problem for Alex's mean fist!"

After I don't know how many months, this is finally "finished", bang on the token limit (that part was easy and fun), but staying under the compression limit was a literal impossibility, and I had to run it through PicoTool to get it under. For that reason, I've made the un-garbled code available in a Google doc at this link. But that is exactly at the token limit! No room for edits... so I've also provided this version, which gives you a bit of breathing room if you want to experiment, it's missing some tweaks that the final game has, which are bug fixes and extra minor features like the level intro.

What made it in:

  • All vehicles! Boat, Pedicopter, and Bike!
  • All 16 levels! Though they are between 50-75% of their original size.
  • Janken game (rock paper scissors)
  • Secret level!
  • All enemies! Except for one angry jumping fish in the boat level.

What's cut to fit into Pico-8:

  • The short level and symbol puzzle after the Princess to get the Crown. You get the Crown with the Princess this time, a two-for-one deal.
  • Graphical level map
  • Title screen
  • Continue cheat and secret invisible punch block in bonus level
  • All powerups except the ring. They werenít very useful anyway.
  • Since Telepathy ball is missing, Janken game is always played with you always being able to see his choice, making it more of a reaction game. I had plans for switching up the gameplay of the original by always making the telepathy ball hidden in one of the blocks in the level but this didnít make the cut.

One of the things I had to do was crunch down the music into fewer channels, to make room for all the music in the game, making use of the arpeggio feature to simulate multiple note harmonies. Here is a version of the game before I did this - Alternate version of main theme and water theme - the main theme and water music have 4 channels of music (no arpeggio effect). Just play through till you fall into the water, you'll get to hear both songs. Also this version features moving water surface and a smooth transition into the water, which was removed to save tokens (amongst other things!).

If you're a developer and you want to know more about how this was put together and the hurdles I overcame, I'm currently blogging about this on my site. I've only made one post so far, but please use the "subscribe" feature and I'll do an email to let you know when I make a blog update - I'm looking forward to writing about how I crammed the levels into more than the map area can actually fit!

More info - Domarius Games

platform sega retro remake demake 64x6
P#46037 2017-11-09 01:12

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Oh wow! I have spent many an hour playing this on my master system! It was baked in, always there. I need to get me some of this!

P#46072 2017-11-09 14:41

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Yeah I used to play it at my friend's house, Master System II, it was built in! It was brutally unfair difficulty for young kids I think, but that added to the mystery at the time...

P#46081 2017-11-09 16:54

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wow! this is amazing! so much in one little cartridge! kudos

P#46087 2017-11-09 21:17

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Thank you! That's what I was aiming for... could I fit a whole, traditional platform game in a Pico-8 cartridge, the way the Jelpi demo promises, but never delivers...

P#46088 2017-11-09 21:55

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Looks really cool! I got a crash while going through the cave-door thingy in the first water section.

P#46138 2017-11-11 11:31

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Wow, very impressive! Just as insanely frustrating as the original. Kudos.

P#46144 2017-11-11 16:30

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@WonderingMonster - there are no crashes in the final version - you were playing the JUKEBOX version. I've worked out how to not make that show up on the main page and updated the post. I've also updated the cart itself with a warning that it's not the full game!

@bumper314 - yes... yes it is :) Frustrating for me to play it too, but it's completable.

P#46150 2017-11-11 19:08

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@Domarius BTW, observed a slight difference in behavior compared to the original game (if memory serves). In the first level, if you break the second [?] block to reveal the black ghost, the third [?] block at the end of the map would give you a ring instead. As far as I remember, that was the trade-off: dodge a ghost from one block to get a prize in the next.

P#46191 2017-11-12 12:58

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@bumper314 thanks, I was hoping someone would be dedicated enough to nit pick the differences!

Actually I didn't know about that logic, thanks for the heads up :)

Basically I went with; if you have a ring (either wearing it, or in your inventory) you get a ghost for a ? block. Since you can't have more than one ring in your inventory, that makes sense anyway.

Actually the code has the default behaviour that would keep adding rings in your inventory! I had to actually add code to prevent you from getting more than one ring. I noticed it would be really easy otherwise to "stockpile" rings in your inventory, and it's meant to be Alex Kidd, not Metal Slug :D

P#46347 2017-11-15 19:53

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@Domarius Just fired up an emulator to confirm, and I was slightly incorrect. The prize for the second [?] (after a ghost) is an extra life. Only tested on the first level though.

P#46390 2017-11-16 19:15

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Great job :)

P#46423 2017-11-17 15:35

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