Why are some rooms on the map filled in, and some not

This are short descriptions of all weapon types taken from their webpage:

• Swords: They are used specially to attack monsters that can bleed, as they cause cuttings. However they are much less effective against monsters that don’t bleed or things made of iron or wood, like barrels or armors.
• Daggers: Lethal against all bleeding monsters if attacked from behind, as the damage and the critic change is multiplied. Moreover your attack is much faster, as daggers are the lightest weapons you can find.
• Maces: They are meant to smash. Specally effective against skeletons, rotten barrels y and protected monsters.
• Axes: Axes are a mixture of swords and maces, as they cause cuts to bleeding monsters, and their hits are good enought over solid objects. Their main drawback is their low speed.
• Polearm: Their biggest advantage is that they have longer scope that the rest of melee weapons. They are specially useful against monsters that is better to keep far.
• Bow: Obviously are used to attack from far distances, though they are less effective against non-bleeding monsters.
• Wands: Wands shoot all types of magic bolts. Their effects are very destructive and they have fast attack, but they have limited charges.

You will need to focus on leveling at least two of the weapon types. You will need one type for "monsters that can bleed" such as swords, daggers, polearms or bows and one weapon type for smashing crates and killing monsters with armor, skeletons and any other enemies that "don't bleed" such as mace, axe and perhaps certain polearms (not 100% sure about whether some polarms are good for this).

Needlesly to say polearms, bows and wands are quite useful against ranged enemies such as mages, unless you're fast and skilled enough to reach them with short-range melee weapon before they get a chance to hit you.

Each weapon type has it's advantages and disadvantages over other weapon types, which ones you should use really depends on your personal preference. My best advice would be that you try using a weapon of each type and see which ones fit your style the most and then level those up.

UnEnglish is the original English translation done for the game. As you might know, the creator of the game is from Spain, and English is not his first language. That's why the quality of that initial translation is not so good, in terms of grammar and vocabulary. After the game started gaining popularity, the original translation was corrected by a native English speaker, as can be seen in the "About" section:

This game has been translated from Unenglish to English by:

• Christopher Mathieu

The original English translation remained as UnEnglish, just for fun.

The main differences between both translations can be found at the very beggining, and I grabbed some screenshots to show them:

• Grammar errors: things which are just wrong. "Whatever please me" becomes "Whatever pleases me".

• Literal translations: my first language is also Spanish, so I can recognize some of the word-by-word translations, forming expressions that aren't grammatically wrong but they will sound really strange for almost every other English speaker. "Throw dices" is literally "Tirar los dados" in Spanish, and it feels more natural in the English correction "Roll a d20".

• Overall changes: for example, some geek references have been updated, as it can be seen in the initial conversation. "Hey, in all videogames skeletons can be killed using arrows" becomes "Hey, it works in Legend of Zelda". As I haven't played the whole game in English or UnEnglish, I don't know how often the dialogs have been updated this way, but I guess that most of the changes have been made to avoid "localized jokes" that people outside the Spain wouldn't get, or just adding some extra geek references like the Zelda example.

Conclusion: UnEnglish version should only be played out of curiosity, but it will mostly look like crappy English for the ones who can speak proper English, and more geek references means more fun, so go for the English version.