Classic carts back-to-back: Defender C64 vs VIC20

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Mark Vergeer
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C64: C64 32x32 pixels In this video I do a little comparison of the Defender game on both the C64 and the VIC-20.
There even seems to be a huge difference in game play when it comes to the NTSC and the PAL C64 version in favour of the NTSC version.

I must say Youtube does a screwy job with the VIC20 part of the video.

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Mark Vergeer
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Cool replies guys - thanks!



Editor / Pixelator - Armchair Arcade, Inc.
www.markvergeer.nl

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Catatonic
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In case you missed it, I

In case you missed it, I posted this a few days ago. Eugene Jarvis features in it.
http://armchairarcade.com/neo/node/2093

Calibrator
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Joined: 10/25/2006
More versions

The 5200-version was done by Steve A. Baker who did a Apple II conversion out of curiosity and then used this as a base for the Atari 5200 and 400/800 version. This explains why they look similar and don't use hardware features on the Ataris - everything is done in software on the hi-res screen (no player-missile-graphics, no hardware scrolling). The Atari version is faster and plays better, though.

BBC Micro
http://de.youtube.com/watch?v=9f5Hzm7B4xU
If this is also using the graphics mode it looks somewhat disappointing.

MAME
http://de.youtube.com/watch?v=3pgh8pf5xzA
The arcade version still looks the best and has killer sounds (a dedicated 6809 CPU)!
I find it hilarious how this guy works himself up when his ship explodes!

There's also a 13-part Making-of at youtube starting at:
http://de.youtube.com/watch?v=BTs4d7xW704
These parts are very short but have some great comments by Eugene Jarvis & Larry DeMar.
For example DeMar says that they actually developed an Atari 800 version *before* the coinup but didn't bring it to market.
I really would like to see that!

take care,
Calibrator

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Mark Vergeer
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The 5200 version looked

The 5200 version looked good. The TI99/4a looks smart also.



Editor / Pixelator - Armchair Arcade, Inc.
www.markvergeer.nl

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Calibrator
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Versions

The VIC-20 version runs in the character mode - but the C64 does also. The sprites and the smooth horizontal scrolling enhance the gameplay considerably. A good indicator for using sprites is their limited explosions compared to several versions for Atari hardware and the Apple II.

Compare these to the TI99/4a version:
http://de.youtube.com/watch?v=hRkMXbuXlBA

Now compare them to the Atari 5200 version which seems to be identical to my Atari 8 bit computer cartridge except for the different joystick inputs (at least I can't perceive a speed difference between PAL & NTSC):
http://de.youtube.com/watch?v=9e46GCooy-k

Clearly not the fastest version but the ship's movement are quite smooth so precision steering is possible. I remember some issues with collision detection, though.
I also remember that I could play the Atari cartridge for the 400/800 on the highest difficulty level as long as I wanted which really means that it was too easy as I'm not really good at arcade games. I completely lost interest after I discovered that the level counter simply starts from one after level 99 has been finished.
However, level 88 (IIRC) was interesting: All enemies were "Bombers" with their slow sinus curves. As they don't attack the player but only leave mines behind the level plays completely different and I simply flew along trying to avoid them.

take care,
Calibrator

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