The difference seems to be that you have inserted the FX Chain Preset "AliasFactor", where as I have inserted the plugin "AliasFactor" directly. As the FX Chain Preset has no LoFi presets directly available, I think the easiest way is to simply remove that one and insert the plugin by following the instructions in my last post. 

Right click in the FX bin and from the menu select "Insert Audio FX" > "LoFi" > "Alias Factor". Then finally select one of the presets (such as "Cheap Toy" or "Cheaper Toy") from the drop-down list.

Canopus
The difference seems to be that you have inserted the FX Chain Preset "AliasFactor", where as I have inserted the plugin "AliasFactor" directly. As the FX Chain Preset has no LoFi presets directly available, I think the easiest way is to simply remove that one and insert the plugin by following the instructions in my last post. 

Right click in the FX bin and from the menu select "Insert Audio FX" > "LoFi" > "Alias Factor". Then finally select one of the presets (such as "Cheap Toy" or "Cheaper Toy") from the drop-down list.

My Sonar Platinum does not show this option "LoFi" in the "Audio FX" menu, so I tried the "FX Chain Preset" because it was the only place I found.
It may be a bug in my installation or may be one of those many things that no longer exist within the Platinum.
Anyway I appreciate your attention.

What Canopus failed to tell you is the path provided to the AliasFactor plug-in is based on the Platinum Effects layout. The Default All Plugins path is DirectX > Cakewalk > AliasFactor

Check out a $20 VST from Audiothing called MiniBit. The DVD that comes with Computer Music magazine has a more limited version of it, but I bet it has what you're looking for.

scook
What Canopus failed to tell you is the path provided to the AliasFactor plug-in is based on the Platinum Effects layout. The Default All Plugins path is DirectX > Cakewalk > AliasFactor

Definitely has something wrong with my installation and I wonder if you can help me.
Enabling "Platinum Effects", I do not see the DirectX option (the options that appear are only for the "Sonitus fx"), as you can see in the image below:
 

 
However the DirectX option for audio appears in the plugin manager:
 

 
What could be done?

To see the DirectX folder select the "Default All Plugins" layout immediately above "Platinum Effects"

Default All Plugins layout is built on the fly from all available plug-ins and the plug-ins are first sorted by format: VST3, VST2 and DirectX.
 
Notice the "Platinum Effects" layout has the LoFi folder mentioned above.

With "Default All Plugins" I get only this:
 

 
Where in Plugin Manager is like:
 

 
So apparently there must be something corrupted in my install.
But as in the previous post, "LoFi" appears, but only in the plugin manager.
Could you tell me if there is how to fix this?

I should have noticed the plug-ins are not listed in the Plug-in Manager. There should be a Cakewalk folder under DirectX. It looks like the Classic Creative FX Suite is either not installed or the plug-ins failed to register during installation. If you are using the Command Center reinstall the Classic Creative FX Suite or download it from your account and manually install it.

The genre is called "Chiptunes".
https://www.youtube.com/watch?v=ptPXxAds1Jc
 
The true Geeks get the electronics from old games consoles and make music with it.
https://en.wikipedia.org/wiki/Chiptune