2. What factors should you consider to enhance the interactivity of your game?

There are four factors that should be considered to enhance the interactivity of my game.
The first factor is user-friendly and enable users to have choices to choose from. Like for example, firstly, either to play it single player or with partners. Mostly boys like to play action games and they would prefer to play it with friends and choose their partners but some rather play it alone. Secondly, the level of difficulty of the game. Not all users like their game to be in 'Easy' mode and wants to challenge themselve by playing the 'Hard' mode.

The second factor is special effects. Without special effects, users will be less interested to play the game as it does not excite them to continue playing. Special effects is important to make user revisit and play it over and over again. It is the main key to attract more users.
The third factor is sound effects. Without the sound effects and only caption, the game won't be fun because you won't be able to feel the game when you're playing. Especially action games like 'L4D2', the sound of the shooting guns, zombies, the characters talking and also the background sound effects. If there is no sound effects for this kind of action games, it is hard to hint when signal users that the zombies are nearby. It plays an important part in the game too.

The forth factor is character. Some adventure and action games need a character in it. For example, 'Mario' is the petite guy who needs to save the princess.
The fifth factor is obstacle. Obstacles is a must to have in every game. Without obstacles, game would be as easy as ABC.
1. How can interactivity be exploited in the chosen application?
The application chosen should have the six components that is User Control, Responsiveness, Real Time Interaction,Connectedness, Personalization/Customization and Playfulness in order to be used to greatest advantage in the chosen application.User should be able to control the application. There should also be many ways to find the information that they want and does not need to use much effort to achieve a certain task.The application should be responsive to users and the speed of the communication has to be promptly as the faster the response,greater the perception of interactivity. Application should also obtain hyperlinks related to it so that it will create connectedness for users. Personalization/Customization reflects on how to meet the needs of an individual user by allowing users to provide information or feedback. Lastly,in order for the application to be successful, it need to have more excitement like putting in together entertainment with information. Entertainment can be a formed of videos or/and interactive games.
There are different types of interactive applications.
Harry Potter lovers will surely love this interactive site which has used interesting elements for display. The picture gallery is used in an interesting way with the pictures revolving around the main figure as shown in the image.
This popular movie needs no introduction as it is full of creative effects. The website is created on the same lines; users can move the cursor over the elements to know details. These are shown in a very creative fashion keeping in mind the concept of the movie.