These characters represent their respective countries; thus the implication is that Germany, the country, is tsundere.
Let's see; she's smiling, so option one should work — unless that throwaway line of dialogue back in Chapter 2 was hinting that she was actually a Tsundere and so I should choose number two... The Dating Sim is a type of game designed to set up goals, usually in the forms of schedules and stats corresponding to social skills, which must be achieved to discover a story focused entirely around the Character Development of the player's chosen girl/guy, get into his/her pants, or both.
También es muy común encontrar hombres Tsundere en los animes/mangas Yaoi.
También hay Tsunderes en los videojuegos, un ejemplo es el de un personaje de SEGA (Sonic).
(See for example, the difference between the series, which is very close to a Visual Novel style of gameplay, and the DOA Xtreme series, which is the closest thing to a true Dating Sim with mass-market appeal in the US.) If the game plays out like a Choose Your Own Adventure, that's a Visual Novel.
If it feels like you're playing an RPG, trying to keep track of everyone's feelings about you and giving out presents, that's a Dating Sim.
Comiket organizer Koichi Ichikawa has described Lum Invader of Urusei Yatsura as being both the source of moe and the first tsundere; Tsundere as a concept is not strictly limited to women, and is not strictly limited to manga or anime.
The character Germany from the series Hetalia: Axis Powers is portrayed as being tsundere, and is paired with a "lovable loser", Italy Veneziano.
This leads to Multiple Endings, though some Dating Sims make it possible to see several of these "endings" in a single playthrough.
Some Sim Date games have been made into Harem anime, though the result is usually nothing special due to the removal of sex and the fact that the narrative can no longer focus on any single character.
Another accepted definition of tsundere is a girl or a guy who has a combative attitude toward others but is also kind on the inside.
They usually play out as having an attitude toward the main character, either a male or a female, and often criticizing them in one way or another, until they eventually warm up to them or fall in love with them as the series progresses, though they usually find it very hard to admit it or outright deny it in some cases.
es un término japonés utilizado para describir a una persona cuyo comportamiento inicial es grosero, reservado e incluso hostil, pero que gradualmente se transforma en alguien cálido, sensible y amigable.