Well technically it can if you're willing to modify it.
I've also been messing around with Kirikiri and here's what I see about the two engines.
(On a unrelated note. Onscripter will sometimes stretch to fullscreen ,no idea why.
ONscripter/NScripter
-Cannot play widescreen.
-Graphics have to be predefined.
-Lacking in functionality.
-Excellent word wrap
-NOT the second most famous vn engine in japan anymore.(it isn't used much anymore.)
-Can run on a potato
-The coding can be a little confusing.
-The english version hasn't been updated in 4 years or something.
NScripter had a 2015 new release however it does not have support for english word wrapping
Notable games made with it- Umineko,Higurashi,Rose gun days.
The newly released trianthlogy uses a modded version of Nscripter.
edit4-I made a widscreen 1280x720 version of ONscripter you can find it in the "other visual novel engines" topic
Kirikiri
-The image don't need to be defined one by one,you can change a setting which does it for you.
-Can be run in any screen size you want.
-Using Macros you can create very cool stuff and change stuff instantly (Something I havent seen in Renpy or Onscripter. )
-The word wrap is a bit meh,but it works.
-Has a whole ARMY of plugins jesus! (eg- Rain,ogg vorbis plugin,emote,Live 2d,snow,sprite filters etc....)
-Hard to find documentation on english,But i made a fully functional game with my kickass Japaneese skiils, complete with animated sprites and flying cats.
-I think you can make anything with it Using its inbulit programming language "TJS2"
-You can edit those TJS2 files and edit the whole engine to your will!
-Coding is easier than NScripter
-Frequently updated on Github.
games made with it = Dracuriot,Kara no shoujo (english port),True rememeberance,Fate series,and a LOT of eroges.
Renpy
-scripting is simple
-Has a active community where you can ask all the questions you want about it.
-Can be run in any screen size you want.
-Support for other languages(something kiri kiri doesn't have)
-The word wrap is a awesome.
-If you know python you can code it directly into renpy.
-There is documentation in english.(and I think there was a book too.....)
Notable games made with it-Lucid9,Katawo shoujo,Homewards.
Edit-Mangagamer also ported kiss for the petals-Remembering how we met." with renpy.
So what do you guys think,Which one do you think is the best.
Edit-This is all coming from a person with a year of experience on the Three engines and fully functional games made on both.
Coding and Scripting in expamples!
ONscripter/NScripter.
To show a sprite
*first you need to define it
-stralias beach,":a;custom\o_beach_1ac.png"
stralias nagisaangry,"custom\nagisa\nagisa angry 0.png"
*then show it with this command
-ld l,nagisablush0,22
ld c,nagisaconfused0,22
Text
*if your'e displaying english text you need to put them inside `text `
Renpy
*define the sprite
-Kaito happy ="image/kaito.png"
*show it
-show kaito happy at left
*text
-you need to put them inside ""
KiriKiriZ + KAG3
*you don't need to define it.
*show it
-[image storage="kei1_Majime2_2.png" layer=3 page=fore visible=true pos=rc]
*text
-Write it directly into the script.
Tyranobuilder
-Drag and drop.
The hierachy
KirikiriZ+KAG3 = Renpy >Nscripter2015 >ONscripter-en > Japaneese ONscripter = Catsystem2 > Yuukinovel
(Tyranobuilder uses KAG framwork and Tyranoscript which disqualifies it from this list)
Yuukinovel ,Cat system 2 ,Nscripter 2015 have NO SUPPORT FOR -1 byte chracters (bloody english)
Conclusion
Out of all the engines I reccomend
Renpy / Kirikiri = For making stunning and complex games (simple too!)
ONscripter/Nscripter2015 = For making games with very little amount of scripting
eg-For loading sprite you put
lsp ,POS ,TAG
Catsystem 2 = For making japaneese vns you can display english text but it will have to look look this
eg-[Hello!] [My] [name] [is][Dineth][Mallawarachchi.] (my real name
)so yeah it sucks and is very time consuming.
Tyranobuilder = For making very simple visual novels with few choices
(it sucks in my opinion)